Release 4.10 fs/fuse/dir.c
/*
FUSE: Filesystem in Userspace
Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu>
This program can be distributed under the terms of the GNU GPL.
See the file COPYING.
*/
#include "fuse_i.h"
#include <linux/pagemap.h>
#include <linux/file.h>
#include <linux/sched.h>
#include <linux/namei.h>
#include <linux/slab.h>
#include <linux/xattr.h>
#include <linux/posix_acl.h>
static bool fuse_use_readdirplus(struct inode *dir, struct dir_context *ctx)
{
struct fuse_conn *fc = get_fuse_conn(dir);
struct fuse_inode *fi = get_fuse_inode(dir);
if (!fc->do_readdirplus)
return false;
if (!fc->readdirplus_auto)
return true;
if (test_and_clear_bit(FUSE_I_ADVISE_RDPLUS, &fi->state))
return true;
if (ctx->pos == 0)
return true;
return false;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
feng shuo | feng shuo | 71 | 83.53% | 1 | 33.33% |
eric wong | eric wong | 10 | 11.76% | 1 | 33.33% |
al viro | al viro | 4 | 4.71% | 1 | 33.33% |
| Total | 85 | 100.00% | 3 | 100.00% |
static void fuse_advise_use_readdirplus(struct inode *dir)
{
struct fuse_inode *fi = get_fuse_inode(dir);
set_bit(FUSE_I_ADVISE_RDPLUS, &fi->state);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
feng shuo | feng shuo | 31 | 100.00% | 1 | 100.00% |
| Total | 31 | 100.00% | 1 | 100.00% |
union fuse_dentry {
u64 time;
struct rcu_head rcu;
};
static inline void fuse_dentry_settime(struct dentry *entry, u64 time)
{
((union fuse_dentry *) entry->d_fsdata)->time = time;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 30 | 100.00% | 2 | 100.00% |
| Total | 30 | 100.00% | 2 | 100.00% |
static inline u64 fuse_dentry_time(struct dentry *entry)
{
return ((union fuse_dentry *) entry->d_fsdata)->time;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 26 | 100.00% | 2 | 100.00% |
| Total | 26 | 100.00% | 2 | 100.00% |
/*
* FUSE caches dentries and attributes with separate timeout. The
* time in jiffies until the dentry/attributes are valid is stored in
* dentry->d_fsdata and fuse_inode->i_time respectively.
*/
/*
* Calculate the time in jiffies until a dentry/attributes are valid
*/
static u64 time_to_jiffies(u64 sec, u32 nsec)
{
if (sec || nsec) {
struct timespec64 ts = {
sec,
min_t(u32, nsec, NSEC_PER_SEC - 1)
};
return get_jiffies_64() + timespec64_to_jiffies(&ts);
} else
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 51 | 98.08% | 4 | 80.00% |
david sheets | david sheets | 1 | 1.92% | 1 | 20.00% |
| Total | 52 | 100.00% | 5 | 100.00% |
/*
* Set dentry and possibly attribute timeouts from the lookup/mk*
* replies
*/
static void fuse_change_entry_timeout(struct dentry *entry,
struct fuse_entry_out *o)
{
fuse_dentry_settime(entry,
time_to_jiffies(o->entry_valid, o->entry_valid_nsec));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 32 | 100.00% | 3 | 100.00% |
| Total | 32 | 100.00% | 3 | 100.00% |
static u64 attr_timeout(struct fuse_attr_out *o)
{
return time_to_jiffies(o->attr_valid, o->attr_valid_nsec);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 23 | 100.00% | 3 | 100.00% |
| Total | 23 | 100.00% | 3 | 100.00% |
static u64 entry_attr_timeout(struct fuse_entry_out *o)
{
return time_to_jiffies(o->attr_valid, o->attr_valid_nsec);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 23 | 100.00% | 2 | 100.00% |
| Total | 23 | 100.00% | 2 | 100.00% |
/*
* Mark the attributes as stale, so that at the next call to
* ->getattr() they will be fetched from userspace
*/
void fuse_invalidate_attr(struct inode *inode)
{
get_fuse_inode(inode)->i_time = 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 19 | 100.00% | 2 | 100.00% |
| Total | 19 | 100.00% | 2 | 100.00% |
/**
* Mark the attributes as stale due to an atime change. Avoid the invalidate if
* atime is not used.
*/
void fuse_invalidate_atime(struct inode *inode)
{
if (!IS_RDONLY(inode))
fuse_invalidate_attr(inode);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
andrew gallagher | andrew gallagher | 23 | 100.00% | 1 | 100.00% |
| Total | 23 | 100.00% | 1 | 100.00% |
/*
* Just mark the entry as stale, so that a next attempt to look it up
* will result in a new lookup call to userspace
*
* This is called when a dentry is about to become negative and the
* timeout is unknown (unlink, rmdir, rename and in some cases
* lookup)
*/
void fuse_invalidate_entry_cache(struct dentry *entry)
{
fuse_dentry_settime(entry, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 17 | 100.00% | 2 | 100.00% |
| Total | 17 | 100.00% | 2 | 100.00% |
/*
* Same as fuse_invalidate_entry_cache(), but also try to remove the
* dentry from the hash
*/
static void fuse_invalidate_entry(struct dentry *entry)
{
d_invalidate(entry);
fuse_invalidate_entry_cache(entry);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
static void fuse_lookup_init(struct fuse_conn *fc, struct fuse_args *args,
u64 nodeid, const struct qstr *name,
struct fuse_entry_out *outarg)
{
memset(outarg, 0, sizeof(struct fuse_entry_out));
args->in.h.opcode = FUSE_LOOKUP;
args->in.h.nodeid = nodeid;
args->in.numargs = 1;
args->in.args[0].size = name->len + 1;
args->in.args[0].value = name->name;
args->out.numargs = 1;
args->out.args[0].size = sizeof(struct fuse_entry_out);
args->out.args[0].value = outarg;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 140 | 99.29% | 4 | 80.00% |
al viro | al viro | 1 | 0.71% | 1 | 20.00% |
| Total | 141 | 100.00% | 5 | 100.00% |
u64 fuse_get_attr_version(struct fuse_conn *fc)
{
u64 curr_version;
/*
* The spin lock isn't actually needed on 64bit archs, but we
* don't yet care too much about such optimizations.
*/
spin_lock(&fc->lock);
curr_version = fc->attr_version;
spin_unlock(&fc->lock);
return curr_version;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 39 | 100.00% | 1 | 100.00% |
| Total | 39 | 100.00% | 1 | 100.00% |
/*
* Check whether the dentry is still valid
*
* If the entry validity timeout has expired and the dentry is
* positive, try to redo the lookup. If the lookup results in a
* different inode, then let the VFS invalidate the dentry and redo
* the lookup once more. If the lookup results in the same inode,
* then refresh the attributes, timeouts and mark the dentry valid.
*/
static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
{
struct inode *inode;
struct dentry *parent;
struct fuse_conn *fc;
struct fuse_inode *fi;
int ret;
inode = d_inode_rcu(entry);
if (inode && is_bad_inode(inode))
goto invalid;
else if (time_before64(fuse_dentry_time(entry), get_jiffies_64()) ||
(flags & LOOKUP_REVAL)) {
struct fuse_entry_out outarg;
FUSE_ARGS(args);
struct fuse_forget_link *forget;
u64 attr_version;
/* For negative dentries, always do a fresh lookup */
if (!inode)
goto invalid;
ret = -ECHILD;
if (flags & LOOKUP_RCU)
goto out;
fc = get_fuse_conn(inode);
forget = fuse_alloc_forget();
ret = -ENOMEM;
if (!forget)
goto out;
attr_version = fuse_get_attr_version(fc);
parent = dget_parent(entry);
fuse_lookup_init(fc, &args, get_node_id(d_inode(parent)),
&entry->d_name, &outarg);
ret = fuse_simple_request(fc, &args);
dput(parent);
/* Zero nodeid is same as -ENOENT */
if (!ret && !outarg.nodeid)
ret = -ENOENT;
if (!ret) {
fi = get_fuse_inode(inode);
if (outarg.nodeid != get_node_id(inode)) {
fuse_queue_forget(fc, forget, outarg.nodeid, 1);
goto invalid;
}
spin_lock(&fc->lock);
fi->nlookup++;
spin_unlock(&fc->lock);
}
kfree(forget);
if (ret == -ENOMEM)
goto out;
if (ret || (outarg.attr.mode ^ inode->i_mode) & S_IFMT)
goto invalid;
forget_all_cached_acls(inode);
fuse_change_attributes(inode, &outarg.attr,
entry_attr_timeout(&outarg),
attr_version);
fuse_change_entry_timeout(entry, &outarg);
} else if (inode) {
fi = get_fuse_inode(inode);
if (flags & LOOKUP_RCU) {
if (test_bit(FUSE_I_INIT_RDPLUS, &fi->state))
return -ECHILD;
} else if (test_and_clear_bit(FUSE_I_INIT_RDPLUS, &fi->state)) {
parent = dget_parent(entry);
fuse_advise_use_readdirplus(d_inode(parent));
dput(parent);
}
}
ret = 1;
out:
return ret;
invalid:
ret = 0;
goto out;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 406 | 93.33% | 19 | 76.00% |
david howells | david howells | 7 | 1.61% | 1 | 4.00% |
anand v. avati | anand v. avati | 6 | 1.38% | 1 | 4.00% |
seth forshee | seth forshee | 5 | 1.15% | 1 | 4.00% |
feng shuo | feng shuo | 4 | 0.92% | 1 | 4.00% |
nick piggin | nick piggin | 4 | 0.92% | 1 | 4.00% |
al viro | al viro | 3 | 0.69% | 1 | 4.00% |
| Total | 435 | 100.00% | 25 | 100.00% |
static int invalid_nodeid(u64 nodeid)
{
return !nodeid || nodeid == FUSE_ROOT_ID;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 17 | 100.00% | 1 | 100.00% |
| Total | 17 | 100.00% | 1 | 100.00% |
static int fuse_dentry_init(struct dentry *dentry)
{
dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry), GFP_KERNEL);
return dentry->d_fsdata ? 0 : -ENOMEM;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 36 | 100.00% | 1 | 100.00% |
| Total | 36 | 100.00% | 1 | 100.00% |
static void fuse_dentry_release(struct dentry *dentry)
{
union fuse_dentry *fd = dentry->d_fsdata;
kfree_rcu(fd, rcu);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 27 | 100.00% | 1 | 100.00% |
| Total | 27 | 100.00% | 1 | 100.00% |
const struct dentry_operations fuse_dentry_operations = {
.d_revalidate = fuse_dentry_revalidate,
.d_init = fuse_dentry_init,
.d_release = fuse_dentry_release,
};
const struct dentry_operations fuse_root_dentry_operations = {
.d_init = fuse_dentry_init,
.d_release = fuse_dentry_release,
};
int fuse_valid_type(int m)
{
return S_ISREG(m) || S_ISDIR(m) || S_ISLNK(m) || S_ISCHR(m) ||
S_ISBLK(m) || S_ISFIFO(m) || S_ISSOCK(m);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 43 | 97.73% | 1 | 50.00% |
timo savola | timo savola | 1 | 2.27% | 1 | 50.00% |
| Total | 44 | 100.00% | 2 | 100.00% |
int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name,
struct fuse_entry_out *outarg, struct inode **inode)
{
struct fuse_conn *fc = get_fuse_conn_super(sb);
FUSE_ARGS(args);
struct fuse_forget_link *forget;
u64 attr_version;
int err;
*inode = NULL;
err = -ENAMETOOLONG;
if (name->len > FUSE_NAME_MAX)
goto out;
forget = fuse_alloc_forget();
err = -ENOMEM;
if (!forget)
goto out;
attr_version = fuse_get_attr_version(fc);
fuse_lookup_init(fc, &args, nodeid, name, outarg);
err = fuse_simple_request(fc, &args);
/* Zero nodeid is same as -ENOENT, but with valid timeout */
if (err || !outarg->nodeid)
goto out_put_forget;
err = -EIO;
if (!outarg->nodeid)
goto out_put_forget;
if (!fuse_valid_type(outarg->attr.mode))
goto out_put_forget;
*inode = fuse_iget(sb, outarg->nodeid, outarg->generation,
&outarg->attr, entry_attr_timeout(outarg),
attr_version);
err = -ENOMEM;
if (!*inode) {
fuse_queue_forget(fc, forget, outarg->nodeid, 1);
goto out;
}
err = 0;
out_put_forget:
kfree(forget);
out:
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 241 | 99.59% | 12 | 92.31% |
al viro | al viro | 1 | 0.41% | 1 | 7.69% |
| Total | 242 | 100.00% | 13 | 100.00% |
static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
unsigned int flags)
{
int err;
struct fuse_entry_out outarg;
struct inode *inode;
struct dentry *newent;
bool outarg_valid = true;
fuse_lock_inode(dir);
err = fuse_lookup_name(dir->i_sb, get_node_id(dir), &entry->d_name,
&outarg, &inode);
fuse_unlock_inode(dir);
if (err == -ENOENT) {
outarg_valid = false;
err = 0;
}
if (err)
goto out_err;
err = -EIO;
if (inode && get_node_id(inode) == FUSE_ROOT_ID)
goto out_iput;
newent = d_splice_alias(inode, entry);
err = PTR_ERR(newent);
if (IS_ERR(newent))
goto out_err;
entry = newent ? newent : entry;
if (outarg_valid)
fuse_change_entry_timeout(entry, &outarg);
else
fuse_invalidate_entry_cache(entry);
fuse_advise_use_readdirplus(dir);
return newent;
out_iput:
iput(inode);
out_err:
return ERR_PTR(err);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 186 | 94.42% | 9 | 75.00% |
al viro | al viro | 6 | 3.05% | 2 | 16.67% |
feng shuo | feng shuo | 5 | 2.54% | 1 | 8.33% |
| Total | 197 | 100.00% | 12 | 100.00% |
/*
* Atomic create+open operation
*
* If the filesystem doesn't support this, then fall back to separate
* 'mknod' + 'open' requests.
*/
static int fuse_create_open(struct inode *dir, struct dentry *entry,
struct file *file, unsigned flags,
umode_t mode, int *opened)
{
int err;
struct inode *inode;
struct fuse_conn *fc = get_fuse_conn(dir);
FUSE_ARGS(args);
struct fuse_forget_link *forget;
struct fuse_create_in inarg;
struct fuse_open_out outopen;
struct fuse_entry_out outentry;
struct fuse_file *ff;
/* Userspace expects S_IFREG in create mode */
BUG_ON((mode & S_IFMT) != S_IFREG);
forget = fuse_alloc_forget();
err = -ENOMEM;
if (!forget)
goto out_err;
err = -ENOMEM;
ff = fuse_file_alloc(fc);
if (!ff)
goto out_put_forget_req;
if (!fc->dont_mask)
mode &= ~current_umask();
flags &= ~O_NOCTTY;
memset(&inarg, 0, sizeof(inarg));
memset(&outentry, 0, sizeof(outentry));
inarg.flags = flags;
inarg.mode = mode;
inarg.umask = current_umask();
args.in.h.opcode = FUSE_CREATE;
args.in.h.nodeid = get_node_id(dir);
args.in.numargs = 2;
args.in.args[0].size = sizeof(inarg);
args.in.args[0].value = &inarg;
args.in.args[1].size = entry->d_name.len + 1;
args.in.args[1].value = entry->d_name.name;
args.out.numargs = 2;
args.out.args[0].size = sizeof(outentry);
args.out.args[0].value = &outentry;
args.out.args[1].size = sizeof(outopen);
args.out.args[1].value = &outopen;
err = fuse_simple_request(fc, &args);
if (err)
goto out_free_ff;
err = -EIO;
if (!S_ISREG(outentry.attr.mode) || invalid_nodeid(outentry.nodeid))
goto out_free_ff;
ff->fh = outopen.fh;
ff->nodeid = outentry.nodeid;
ff->open_flags = outopen.open_flags;
inode = fuse_iget(dir->i_sb, outentry.nodeid, outentry.generation,
&outentry.attr, entry_attr_timeout(&outentry), 0);
if (!inode) {
flags &= ~(O_CREAT | O_EXCL | O_TRUNC);
fuse_sync_release(ff, flags);
fuse_queue_forget(fc, forget, outentry.nodeid, 1);
err = -ENOMEM;
goto out_err;
}
kfree(forget);
d_instantiate(entry, inode);
fuse_change_entry_timeout(entry, &outentry);
fuse_invalidate_attr(dir);
err = finish_open(file, entry, generic_file_open, opened);
if (err) {
fuse_sync_release(ff, flags);
} else {
file->private_data = fuse_file_get(ff);
fuse_finish_open(inode, file);
}
return err;
out_free_ff:
fuse_file_free(ff);
out_put_forget_req:
kfree(forget);
out_err:
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 574 | 97.29% | 17 | 80.95% |
al viro | al viro | 13 | 2.20% | 3 | 14.29% |
tejun heo | tejun heo | 3 | 0.51% | 1 | 4.76% |
| Total | 590 | 100.00% | 21 | 100.00% |
static int fuse_mknod(struct inode *, struct dentry *, umode_t, dev_t);
static int fuse_atomic_open(struct inode *dir, struct dentry *entry,
struct file *file, unsigned flags,
umode_t mode, int *opened)
{
int err;
struct fuse_conn *fc = get_fuse_conn(dir);
struct dentry *res = NULL;
if (d_in_lookup(entry)) {
res = fuse_lookup(dir, entry, 0);
if (IS_ERR(res))
return PTR_ERR(res);
if (res)
entry = res;
}
if (!(flags & O_CREAT) || d_really_is_positive(entry))
goto no_open;
/* Only creates */
*opened |= FILE_CREATED;
if (fc->no_create)
goto mknod;
err = fuse_create_open(dir, entry, file, flags, mode, opened);
if (err == -ENOSYS) {
fc->no_create = 1;
goto mknod;
}
out_dput:
dput(res);
return err;
mknod:
err = fuse_mknod(dir, entry, mode, 0);
if (err)
goto out_dput;
no_open:
return finish_no_open(file, res);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 179 | 89.05% | 3 | 30.00% |
al viro | al viro | 19 | 9.45% | 6 | 60.00% |
david howells | david howells | 3 | 1.49% | 1 | 10.00% |
| Total | 201 | 100.00% | 10 | 100.00% |
/*
* Code shared between mknod, mkdir, symlink and link
*/
static int create_new_entry(struct fuse_conn *fc, struct fuse_args *args,
struct inode *dir, struct dentry *entry,
umode_t mode)
{
struct fuse_entry_out outarg;
struct inode *inode;
int err;
struct fuse_forget_link *forget;
forget = fuse_alloc_forget();
if (!forget)
return -ENOMEM;
memset(&outarg, 0, sizeof(outarg));
args->in.h.nodeid = get_node_id(dir);
args->out.numargs = 1;
args->out.args[0].size = sizeof(outarg);
args->out.args[0].value = &outarg;
err = fuse_simple_request(fc, args);
if (err)
goto out_put_forget_req;
err = -EIO;
if (invalid_nodeid(outarg.nodeid))
goto out_put_forget_req;
if ((outarg.attr.mode ^ mode) & S_IFMT)
goto out_put_forget_req;
inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation,
&outarg.attr, entry_attr_timeout(&outarg), 0);
if (!inode) {
fuse_queue_forget(fc, forget, outarg.nodeid, 1);
return -ENOMEM;
}
kfree(forget);
err = d_instantiate_no_diralias(entry, inode);
if (err)
return err;
fuse_change_entry_timeout(entry, &outarg);
fuse_invalidate_attr(dir);
return 0;
out_put_forget_req:
kfree(forget);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 274 | 99.64% | 14 | 93.33% |
al viro | al viro | 1 | 0.36% | 1 | 6.67% |
| Total | 275 | 100.00% | 15 | 100.00% |
static int fuse_mknod(struct inode *dir, struct dentry *entry, umode_t mode,
dev_t rdev)
{
struct fuse_mknod_in inarg;
struct fuse_conn *fc = get_fuse_conn(dir);
FUSE_ARGS(args);
if (!fc->dont_mask)
mode &= ~current_umask();
memset(&inarg, 0, sizeof(inarg));
inarg.mode = mode;
inarg.rdev = new_encode_dev(rdev);
inarg.umask = current_umask();
args.in.h.opcode = FUSE_MKNOD;
args.in.numargs = 2;
args.in.args[0].size = sizeof(inarg);
args.in.args[0].value = &inarg;
args.in.args[1].size = entry->d_name.len + 1;
args.in.args[1].value = entry->d_name.name;
return create_new_entry(fc, &args, dir, entry, mode);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 187 | 99.47% | 5 | 83.33% |
al viro | al viro | 1 | 0.53% | 1 | 16.67% |
| Total | 188 | 100.00% | 6 | 100.00% |
static int fuse_create(struct inode *dir, struct dentry *entry, umode_t mode,
bool excl)
{
return fuse_mknod(dir, entry, mode, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 31 | 91.18% | 2 | 50.00% |
al viro | al viro | 3 | 8.82% | 2 | 50.00% |
| Total | 34 | 100.00% | 4 | 100.00% |
static int fuse_mkdir(struct inode *dir, struct dentry *entry, umode_t mode)
{
struct fuse_mkdir_in inarg;
struct fuse_conn *fc = get_fuse_conn(dir);
FUSE_ARGS(args);
if (!fc->dont_mask)
mode &= ~current_umask();
memset(&inarg, 0, sizeof(inarg));
inarg.mode = mode;
inarg.umask = current_umask();
args.in.h.opcode = FUSE_MKDIR;
args.in.numargs = 2;
args.in.args[0].size = sizeof(inarg);
args.in.args[0].value = &inarg;
args.in.args[1].size = entry->d_name.len + 1;
args.in.args[1].value = entry->d_name.name;
return create_new_entry(fc, &args, dir, entry, S_IFDIR);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 175 | 99.43% | 4 | 80.00% |
al viro | al viro | 1 | 0.57% | 1 | 20.00% |
| Total | 176 | 100.00% | 5 | 100.00% |
static int fuse_symlink(struct inode *dir, struct dentry *entry,
const char *link)
{
struct fuse_conn *fc = get_fuse_conn(dir);
unsigned len = strlen(link) + 1;
FUSE_ARGS(args);
args.in.h.opcode = FUSE_SYMLINK;
args.in.numargs = 2;
args.in.args[0].size = entry->d_name.len + 1;
args.in.args[0].value = entry->d_name.name;
args.in.args[1].size = len;
args.in.args[1].value = link;
return create_new_entry(fc, &args, dir, entry, S_IFLNK);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 141 | 100.00% | 3 | 100.00% |
| Total | 141 | 100.00% | 3 | 100.00% |
void fuse_update_ctime(struct inode *inode)
{
if (!IS_NOCMTIME(inode)) {
inode->i_ctime = current_time(inode);
mark_inode_dirty_sync(inode);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maxim patlasov | maxim patlasov | 33 | 97.06% | 1 | 50.00% |
deepa dinamani | deepa dinamani | 1 | 2.94% | 1 | 50.00% |
| Total | 34 | 100.00% | 2 | 100.00% |
static int fuse_unlink(struct inode *dir, struct dentry *entry)
{
int err;
struct fuse_conn *fc = get_fuse_conn(dir);
FUSE_ARGS(args);
args.in.h.opcode = FUSE_UNLINK;
args.in.h.nodeid = get_node_id(dir);
args.in.numargs = 1;
args.in.args[0].size = entry->d_name.len + 1;
args.in.args[0].value = entry->d_name.name;
err = fuse_simple_request(fc, &args);
if (!err) {
struct inode *inode = d_inode(entry);
struct fuse_inode *fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
fi->attr_version = ++fc->attr_version;
/*
* If i_nlink == 0 then unlink doesn't make sense, yet this can
* happen if userspace filesystem is careless. It would be
* difficult to enforce correct nlink usage so just ignore this
* condition here
*/
if (inode->i_nlink > 0)
drop_nlink(inode);
spin_unlock(&fc->lock);
fuse_invalidate_attr(inode);
fuse_invalidate_attr(dir);
fuse_invalidate_entry_cache(entry);
fuse_update_ctime(inode);
} else if (err == -EINTR)
fuse_invalidate_entry(entry);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 203 | 95.31% | 6 | 66.67% |
maxim patlasov | maxim patlasov | 5 | 2.35% | 1 | 11.11% |
david howells | david howells | 3 | 1.41% | 1 | 11.11% |
dave hansen | dave hansen | 2 | 0.94% | 1 | 11.11% |
| Total | 213 | 100.00% | 9 | 100.00% |
static int fuse_rmdir(struct inode *dir, struct dentry *entry)
{
int err;
struct fuse_conn *fc = get_fuse_conn(dir);
FUSE_ARGS(args);
args.in.h.opcode = FUSE_RMDIR;
args.in.h.nodeid = get_node_id(dir);
args.in.numargs = 1;
args.in.args[0].size = entry->d_name.len + 1;
args.in.args[0].value = entry->d_name.name;
err = fuse_simple_request(fc, &args);
if (!err) {
clear_nlink(d_inode(entry));
fuse_invalidate_attr(dir);
fuse_invalidate_entry_cache(entry);
} else if (err == -EINTR)
fuse_invalidate_entry(entry);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 146 | 96.05% | 4 | 66.67% |
david howells | david howells | 3 | 1.97% | 1 | 16.67% |
dave hansen | dave hansen | 3 | 1.97% | 1 | 16.67% |
| Total | 152 | 100.00% | 6 | 100.00% |
static int fuse_rename_common(struct inode *olddir, struct dentry *oldent,
struct inode *newdir, struct dentry *newent,
unsigned int flags, int opcode, size_t argsize)
{
int err;
struct fuse_rename2_in inarg;
struct fuse_conn *fc = get_fuse_conn(olddir);
FUSE_ARGS(args);
memset(&inarg, 0, argsize);
inarg.newdir = get_node_id(newdir);
inarg.flags = flags;
args.in.h.opcode = opcode;
args.in.h.nodeid = get_node_id(olddir);
args.in.numargs = 3;
args.in.args[0].size = argsize;
args.in.args[0].value = &inarg;
args.in.args[1].size = oldent->d_name.len + 1;
args.in.args[1].value = oldent->d_name.name;
args.in.args[2].size = newent->d_name.len + 1;
args.in.args[2].value = newent->d_name.name;
err = fuse_simple_request(fc, &args);
if (!err) {
/* ctime changes */
fuse_invalidate_attr(d_inode(oldent));
fuse_update_ctime(d_inode(oldent));
if (flags & RENAME_EXCHANGE) {
fuse_invalidate_attr(d_inode(newent));
fuse_update_ctime(d_inode(newent));
}
fuse_invalidate_attr(olddir);
if (olddir != newdir)
fuse_invalidate_attr(newdir);
/* newent will end up negative */
if (!(flags & RENAME_EXCHANGE) && d_really_is_positive(newent)) {
fuse_invalidate_attr(d_inode(newent));
fuse_invalidate_entry_cache(newent);
fuse_update_ctime(d_inode(newent));
}
} else if (err == -EINTR) {
/* If request was interrupted, DEITY only knows if the
rename actually took place. If the invalidation
fails (e.g. some process has CWD under the renamed
directory), then there can be inconsistency between
the dcache and the real filesystem. Tough luck. */
fuse_invalidate_entry(oldent);
if (d_really_is_positive(newent))
fuse_invalidate_entry(newent);
}
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 322 | 90.45% | 6 | 75.00% |
david howells | david howells | 24 | 6.74% | 1 | 12.50% |
maxim patlasov | maxim patlasov | 10 | 2.81% | 1 | 12.50% |
| Total | 356 | 100.00% | 8 | 100.00% |
static int fuse_rename2(struct inode *olddir, struct dentry *oldent,
struct inode *newdir, struct dentry *newent,
unsigned int flags)
{
struct fuse_conn *fc = get_fuse_conn(olddir);
int err;
if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE))
return -EINVAL;
if (flags) {
if (fc->no_rename2 || fc->minor < 23)
return -EINVAL;
err = fuse_rename_common(olddir, oldent, newdir, newent, flags,
FUSE_RENAME2,
sizeof(struct fuse_rename2_in));
if (err == -ENOSYS) {
fc->no_rename2 = 1;
err = -EINVAL;
}
} else {
err = fuse_rename_common(olddir, oldent, newdir, newent, 0,
FUSE_RENAME,
sizeof(struct fuse_rename_in));
}
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 152 | 100.00% | 2 | 100.00% |
| Total | 152 | 100.00% | 2 | 100.00% |
static int fuse_link(struct dentry *entry, struct inode *newdir,
struct dentry *newent)
{
int err;
struct fuse_link_in inarg;
struct inode *inode = d_inode(entry);
struct fuse_conn *fc = get_fuse_conn(inode);
FUSE_ARGS(args);
memset(&inarg, 0, sizeof(inarg));
inarg.oldnodeid = get_node_id(inode);
args.in.h.opcode = FUSE_LINK;
args.in.numargs = 2;
args.in.args[0].size = sizeof(inarg);
args.in.args[0].value = &inarg;
args.in.args[1].size = newent->d_name.len + 1;
args.in.args[1].value = newent->d_name.name;
err = create_new_entry(fc, &args, newdir, newent, inode->i_mode);
/* Contrary to "normal" filesystems it can happen that link
makes two "logical" inodes point to the same "physical"
inode. We invalidate the attributes of the old one, so it
will reflect changes in the backing inode (link count,
etc.)
*/
if (!err) {
struct fuse_inode *fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
fi->attr_version = ++fc->attr_version;
inc_nlink(inode);
spin_unlock(&fc->lock);
fuse_invalidate_attr(inode);
fuse_update_ctime(inode);
} else if (err == -EINTR) {
fuse_invalidate_attr(inode);
}
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 245 | 96.84% | 4 | 66.67% |
maxim patlasov | maxim patlasov | 5 | 1.98% | 1 | 16.67% |
david howells | david howells | 3 | 1.19% | 1 | 16.67% |
| Total | 253 | 100.00% | 6 | 100.00% |
static void fuse_fillattr(struct inode *inode, struct fuse_attr *attr,
struct kstat *stat)
{
unsigned int blkbits;
struct fuse_conn *fc = get_fuse_conn(inode);
/* see the comment in fuse_change_attributes() */
if (fc->writeback_cache && S_ISREG(inode->i_mode)) {
attr->size = i_size_read(inode);
attr->mtime = inode->i_mtime.tv_sec;
attr->mtimensec = inode->i_mtime.tv_nsec;
attr->ctime = inode->i_ctime.tv_sec;
attr->ctimensec = inode->i_ctime.tv_nsec;
}
stat->dev = inode->i_sb->s_dev;
stat->ino = attr->ino;
stat->mode = (inode->i_mode & S_IFMT) | (attr->mode & 07777);
stat->nlink = attr->nlink;
stat->uid = make_kuid(&init_user_ns, attr->uid);
stat->gid = make_kgid(&init_user_ns, attr->gid);
stat->rdev = inode->i_rdev;
stat->atime.tv_sec = attr->atime;
stat->atime.tv_nsec = attr->atimensec;
stat->mtime.tv_sec = attr->mtime;
stat->mtime.tv_nsec = attr->mtimensec;
stat->ctime.tv_sec = attr->ctime;
stat->ctime.tv_nsec = attr->ctimensec;
stat->size = attr->size;
stat->blocks = attr->blocks;
if (attr->blksize != 0)
blkbits = ilog2(attr->blksize);
else
blkbits = inode->i_sb->s_blocksize_bits;
stat->blksize = 1 << blkbits;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 205 | 70.21% | 2 | 33.33% |
maxim patlasov | maxim patlasov | 42 | 14.38% | 2 | 33.33% |
pavel emelianov | pavel emelianov | 33 | 11.30% | 1 | 16.67% |
eric w. biederman | eric w. biederman | 12 | 4.11% | 1 | 16.67% |
| Total | 292 | 100.00% | 6 | 100.00% |
static int fuse_do_getattr(struct inode *inode, struct kstat *stat,
struct file *file)
{
int err;
struct fuse_getattr_in inarg;
struct fuse_attr_out outarg;
struct fuse_conn *fc = get_fuse_conn(inode);
FUSE_ARGS(args);
u64 attr_version;
attr_version = fuse_get_attr_version(fc);
memset(&inarg, 0, sizeof(inarg));
memset(&outarg, 0, sizeof(outarg));
/* Directories have separate file-handle space */
if (file && S_ISREG(inode->i_mode)) {
struct fuse_file *ff = file->private_data;
inarg.getattr_flags |= FUSE_GETATTR_FH;
inarg.fh = ff->fh;
}
args.in.h.opcode = FUSE_GETATTR;
args.in.h.nodeid = get_node_id(inode);
args.in.numargs = 1;
args.in.args[0].size = sizeof(inarg);
args.in.args[0].value = &inarg;
args.out.numargs = 1;
args.out.args[0].size = sizeof(outarg);
args.out.args[0].value = &outarg;
err = fuse_simple_request(fc, &args);
if (!err) {
if ((inode->i_mode ^ outarg.attr.mode) & S_IFMT) {
make_bad_inode(inode);
err = -EIO;
} else {
fuse_change_attributes(inode, &outarg.attr,
attr_timeout(&outarg),
attr_version);
if (stat)
fuse_fillattr(inode, &outarg.attr, stat);
}
}
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 304 | 100.00% | 8 | 100.00% |
| Total | 304 | 100.00% | 8 | 100.00% |
int fuse_update_attributes(struct inode *inode, struct kstat *stat,
struct file *file, bool *refreshed)
{
struct fuse_inode *fi = get_fuse_inode(inode);
int err;
bool r;
if (time_before64(fi->i_time, get_jiffies_64())) {
r = true;
forget_all_cached_acls(inode);
err = fuse_do_getattr(inode, stat, file);
} else {
r = false;
err = 0;
if (stat) {
generic_fillattr(inode, stat);
stat->mode = fi->orig_i_mode;
stat->ino = fi->orig_ino;
}
}
if (refreshed != NULL)
*refreshed = r;
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 115 | 89.84% | 2 | 50.00% |
pavel shilovsky | pavel shilovsky | 8 | 6.25% | 1 | 25.00% |
seth forshee | seth forshee | 5 | 3.91% | 1 | 25.00% |
| Total | 128 | 100.00% | 4 | 100.00% |
int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
u64 child_nodeid, struct qstr *name)
{
int err = -ENOTDIR;
struct inode *parent;
struct dentry *dir;
struct dentry *entry;
parent = ilookup5(sb, parent_nodeid, fuse_inode_eq, &parent_nodeid);
if (!parent)
return -ENOENT;
inode_lock(parent);
if (!S_ISDIR(parent->i_mode))
goto unlock;
err = -ENOENT;
dir = d_find_alias(parent);
if (!dir)
goto unlock;
name->hash = full_name_hash(dir, name->name, name->len);
entry = d_lookup(dir, name);
dput(dir);
if (!entry)
goto unlock;
fuse_invalidate_attr(parent);
fuse_invalidate_entry(entry);
if (child_nodeid != 0 && d_really_is_positive(entry)) {
inode_lock(d_inode(entry));
if (get_node_id(d_inode(entry)) != child_nodeid) {
err = -ENOENT;
goto badentry;
}
if (d_mountpoint(entry)) {
err = -EBUSY;
goto badentry;
}
if (d_is_dir(entry)) {
shrink_dcache_parent(entry);
if (!simple_empty(entry)) {
err = -ENOTEMPTY;
goto badentry;
}
d_inode(entry)->i_flags |= S_DEAD;
}
dont_mount(entry);
clear_nlink(d_inode(entry));
err = 0;
badentry:
inode_unlock(d_inode(entry));
if (!err)
d_delete(entry);
} else {
err = 0;
}
dput(entry);
unlock:
inode_unlock(parent);
iput(parent);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
john muir | john muir | 277 | 87.38% | 2 | 33.33% |
david howells | david howells | 19 | 5.99% | 2 | 33.33% |
linus torvalds | linus torvalds | 17 | 5.36% | 1 | 16.67% |
al viro | al viro | 4 | 1.26% | 1 | 16.67% |
| Total | 317 | 100.00% | 6 | 100.00% |
/*
* Calling into a user-controlled filesystem gives the filesystem
* daemon ptrace-like capabilities over the current process. This
* means, that the filesystem daemon is able to record the exact
* filesystem operations performed, and can also control the behavior
* of the requester process in otherwise impossible ways. For example
* it can delay the operation for arbitrary length of time allowing
* DoS against the requester.
*
* For this reason only those processes can call into the filesystem,
* for which the owner of the mount has ptrace privilege. This
* excludes processes started by other users, suid or sgid processes.
*/
int fuse_allow_current_process(struct fuse_conn *fc)
{
const struct cred *cred;
if (fc->allow_other)
return 1;
cred = current_cred();
if (uid_eq(cred->euid, fc->user_id) &&
uid_eq(cred->suid, fc->user_id) &&
uid_eq(cred->uid, fc->user_id) &&
gid_eq(cred->egid, fc->group_id) &&
gid_eq(cred->sgid, fc->group_id) &&
gid_eq(cred->gid, fc->group_id))
return 1;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 53 | 50.96% | 2 | 33.33% |
eric w. biederman | eric w. biederman | 24 | 23.08% | 1 | 16.67% |
david howells | david howells | 21 | 20.19% | 2 | 33.33% |
anatol pomozov | anatol pomozov | 6 | 5.77% | 1 | 16.67% |
| Total | 104 | 100.00% | 6 | 100.00% |
static int fuse_access(struct inode *inode, int mask)
{
struct fuse_conn *fc = get_fuse_conn(inode);
FUSE_ARGS(args);
struct fuse_access_in inarg;
int err;
BUG_ON(mask & MAY_NOT_BLOCK);
if (fc->no_access)
return 0;
memset(&inarg, 0, sizeof(inarg));
inarg.mask = mask & (MAY_READ | MAY_WRITE | MAY_EXEC);
args.in.h.opcode = FUSE_ACCESS;
args.in.h.nodeid = get_node_id(inode);
args.in.numargs = 1;
args.in.args[0].size = sizeof(inarg);
args.in.args[0].value = &inarg;
err = fuse_simple_request(fc, &args);
if (err == -ENOSYS) {
fc->no_access = 1;
err = 0;
}
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 164 | 95.35% | 3 | 75.00% |
al viro | al viro | 8 | 4.65% | 1 | 25.00% |
| Total | 172 | 100.00% | 4 | 100.00% |
static int fuse_perm_getattr(struct inode *inode, int mask)
{
if (mask & MAY_NOT_BLOCK)
return -ECHILD;
forget_all_cached_acls(inode);
return fuse_do_getattr(inode, NULL, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 31 | 79.49% | 1 | 33.33% |
seth forshee | seth forshee | 5 | 12.82% | 1 | 33.33% |
al viro | al viro | 3 | 7.69% | 1 | 33.33% |
| Total | 39 | 100.00% | 3 | 100.00% |
/*
* Check permission. The two basic access models of FUSE are:
*
* 1) Local access checking ('default_permissions' mount option) based
* on file mode. This is the plain old disk filesystem permission
* modell.
*
* 2) "Remote" access checking, where server is responsible for
* checking permission in each inode operation. An exception to this
* is if ->permission() was invoked from sys_access() in which case an
* access request is sent. Execute permission is still checked
* locally based on file mode.
*/
static int fuse_permission(struct inode *inode, int mask)
{
struct fuse_conn *fc = get_fuse_conn(inode);
bool refreshed = false;
int err = 0;
if (!fuse_allow_current_process(fc))
return -EACCES;
/*
* If attributes are needed, refresh them before proceeding
*/
if (fc->default_permissions ||
((mask & MAY_EXEC) && S_ISREG(inode->i_mode))) {
struct fuse_inode *fi = get_fuse_inode(inode);
if (time_before64(fi->i_time, get_jiffies_64())) {
refreshed = true;
err = fuse_perm_getattr(inode, mask);
if (err)
return err;
}
}
if (fc->default_permissions) {
err = generic_permission(inode, mask);
/* If permission is denied, try to refresh file
attributes. This is also needed, because the root
node will at first have no permissions */
if (err == -EACCES && !refreshed) {
err = fuse_perm_getattr(inode, mask);
if (!err)
err = generic_permission(inode, mask);
}
/* Note: the opposite of the above test does not
exist. So if permissions are revoked this won't be
noticed immediately, only after the attribute
timeout has expired */
} else if (mask & (MAY_ACCESS | MAY_CHDIR)) {
err = fuse_access(inode, mask);
} else if ((mask & MAY_EXEC) && S_ISREG(inode->i_mode)) {
if (!(inode->i_mode & S_IXUGO)) {
if (refreshed)
return -EACCES;
err = fuse_perm_getattr(inode, mask);
if (!err && !(inode->i_mode & S_IXUGO))
return -EACCES;
}
}
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 249 | 96.14% | 13 | 76.47% |
al viro | al viro | 5 | 1.93% | 2 | 11.76% |
eric paris | eric paris | 4 | 1.54% | 1 | 5.88% |
anatol pomozov | anatol pomozov | 1 | 0.39% | 1 | 5.88% |
| Total | 259 | 100.00% | 17 | 100.00% |
static int parse_dirfile(char *buf, size_t nbytes, struct file *file,
struct dir_context *ctx)
{
while (nbytes >= FUSE_NAME_OFFSET) {
struct fuse_dirent *dirent = (struct fuse_dirent *) buf;
size_t reclen = FUSE_DIRENT_SIZE(dirent);
if (!dirent->namelen || dirent->namelen > FUSE_NAME_MAX)
return -EIO;
if (reclen > nbytes)
break;
if (memchr(dirent->name, '/', dirent->namelen) != NULL)
return -EIO;
if (!dir_emit(ctx, dirent->name, dirent->namelen,
dirent->ino, dirent->type))
break;
buf += reclen;
nbytes -= reclen;
ctx->pos = dirent->off;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 130 | 92.86% | 3 | 75.00% |
al viro | al viro | 10 | 7.14% | 1 | 25.00% |
| Total | 140 | 100.00% | 4 | 100.00% |
static int fuse_direntplus_link(struct file *file,
struct fuse_direntplus *direntplus,
u64 attr_version)
{
struct fuse_entry_out *o = &direntplus->entry_out;
struct fuse_dirent *dirent = &direntplus->dirent;
struct dentry *parent = file->f_path.dentry;
struct qstr name = QSTR_INIT(dirent->name, dirent->namelen);
struct dentry *dentry;
struct dentry *alias;
struct inode *dir = d_inode(parent);
struct fuse_conn *fc;
struct inode *inode;
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
if (!o->nodeid) {
/*
* Unlike in the case of fuse_lookup, zero nodeid does not mean
* ENOENT. Instead, it only means the userspace filesystem did
* not want to return attributes/handle for this entry.
*
* So do nothing.
*/
return 0;
}
if (name.name[0] == '.') {
/*
* We could potentially refresh the attributes of the directory
* and its parent?
*/
if (name.len == 1)
return 0;
if (name.name[1] == '.' && name.len == 2)
return 0;
}
if (invalid_nodeid(o->nodeid))
return -EIO;
if (!fuse_valid_type(o->attr.mode))
return -EIO;
fc = get_fuse_conn(dir);
name.hash = full_name_hash(parent, name.name, name.len);
dentry = d_lookup(parent, &name);
if (!dentry) {
retry:
dentry = d_alloc_parallel(parent, &name, &wq);
if (IS_ERR(dentry))
return PTR_ERR(dentry);
}
if (!d_in_lookup(dentry)) {
struct fuse_inode *fi;
inode = d_inode(dentry);
if (!inode ||
get_node_id(inode) != o->nodeid ||
((o->attr.mode ^ inode->i_mode) & S_IFMT)) {
d_invalidate(dentry);
dput(dentry);
goto retry;
}
if (is_bad_inode(inode)) {
dput(dentry);
return -EIO;
}
fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
fi->nlookup++;
spin_unlock(&fc->lock);
forget_all_cached_acls(inode);
fuse_change_attributes(inode, &o->attr,
entry_attr_timeout(o),
attr_version);
/*
* The other branch comes via fuse_iget()
* which bumps nlookup inside
*/
} else {
inode = fuse_iget(dir->i_sb, o->nodeid, o->generation,
&o->attr, entry_attr_timeout(o),
attr_version);
if (!inode)
inode = ERR_PTR(-ENOMEM);
alias = d_splice_alias(inode, dentry);
d_lookup_done(dentry);
if (alias) {
dput(dentry);
dentry = alias;
}
if (IS_ERR(dentry))
return PTR_ERR(dentry);
}
if (fc->readdirplus_auto)
set_bit(FUSE_I_INIT_RDPLUS, &get_fuse_inode(inode)->state);
fuse_change_entry_timeout(dentry, o);
dput(dentry);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
anand v. avati | anand v. avati | 301 | 58.67% | 1 | 10.00% |
miklos szeredi | miklos szeredi | 92 | 17.93% | 3 | 30.00% |
al viro | al viro | 92 | 17.93% | 2 | 20.00% |
niels de vos | niels de vos | 16 | 3.12% | 1 | 10.00% |
david howells | david howells | 5 | 0.97% | 1 | 10.00% |
seth forshee | seth forshee | 5 | 0.97% | 1 | 10.00% |
linus torvalds | linus torvalds | 2 | 0.39% | 1 | 10.00% |
| Total | 513 | 100.00% | 10 | 100.00% |
static int parse_dirplusfile(char *buf, size_t nbytes, struct file *file,
struct dir_context *ctx, u64 attr_version)
{
struct fuse_direntplus *direntplus;
struct fuse_dirent *dirent;
size_t reclen;
int over = 0;
int ret;
while (nbytes >= FUSE_NAME_OFFSET_DIRENTPLUS) {
direntplus = (struct fuse_direntplus *) buf;
dirent = &direntplus->dirent;
reclen = FUSE_DIRENTPLUS_SIZE(direntplus);
if (!dirent->namelen || dirent->namelen > FUSE_NAME_MAX)
return -EIO;
if (reclen > nbytes)
break;
if (memchr(dirent->name, '/', dirent->namelen) != NULL)
return -EIO;
if (!over) {
/* We fill entries into dstbuf only as much as
it can hold. But we still continue iterating
over remaining entries to link them. If not,
we need to send a FORGET for each of those
which we did not link.
*/
over = !dir_emit(ctx, dirent->name, dirent->namelen,
dirent->ino, dirent->type);
ctx->pos = dirent->off;
}
buf += reclen;
nbytes -= reclen;
ret = fuse_direntplus_link(file, direntplus, attr_version);
if (ret)
fuse_force_forget(file, direntplus->entry_out.nodeid);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
anand v. avati | anand v. avati | 171 | 85.50% | 1 | 33.33% |
miklos szeredi | miklos szeredi | 21 | 10.50% | 1 | 33.33% |
al viro | al viro | 8 | 4.00% | 1 | 33.33% |
| Total | 200 | 100.00% | 3 | 100.00% |
static int fuse_readdir(struct file *file, struct dir_context *ctx)
{
int plus, err;
size_t nbytes;
struct page *page;
struct inode *inode = file_inode(file);
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_req *req;
u64 attr_version = 0;
if (is_bad_inode(inode))
return -EIO;
req = fuse_get_req(fc, 1);
if (IS_ERR(req))
return PTR_ERR(req);
page = alloc_page(GFP_KERNEL);
if (!page) {
fuse_put_request(fc, req);
return -ENOMEM;
}
plus = fuse_use_readdirplus(inode, ctx);
req->out.argpages = 1;
req->num_pages = 1;
req->pages[0] = page;
req->page_descs[0].length = PAGE_SIZE;
if (plus) {
attr_version = fuse_get_attr_version(fc);
fuse_read_fill(req, file, ctx->pos, PAGE_SIZE,
FUSE_READDIRPLUS);
} else {
fuse_read_fill(req, file, ctx->pos, PAGE_SIZE,
FUSE_READDIR);
}
fuse_lock_inode(inode);
fuse_request_send(fc, req);
fuse_unlock_inode(inode);
nbytes = req->out.args[0].size;
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
if (plus) {
err = parse_dirplusfile(page_address(page), nbytes,
file, ctx,
attr_version);
} else {
err = parse_dirfile(page_address(page), nbytes, file,
ctx);
}
}
__free_page(page);
fuse_invalidate_atime(inode);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 216 | 68.35% | 10 | 55.56% |
anand v. avati | anand v. avati | 60 | 18.99% | 1 | 5.56% |
maxim patlasov | maxim patlasov | 13 | 4.11% | 2 | 11.11% |
feng shuo | feng shuo | 12 | 3.80% | 1 | 5.56% |
al viro | al viro | 10 | 3.16% | 1 | 5.56% |
linus torvalds | linus torvalds | 3 | 0.95% | 1 | 5.56% |
tejun heo | tejun heo | 1 | 0.32% | 1 | 5.56% |
andrew gallagher | andrew gallagher | 1 | 0.32% | 1 | 5.56% |
| Total | 316 | 100.00% | 18 | 100.00% |
static const char *fuse_get_link(struct dentry *dentry,
struct inode *inode,
struct delayed_call *done)
{
struct fuse_conn *fc = get_fuse_conn(inode);
FUSE_ARGS(args);
char *link;
ssize_t ret;
if (!dentry)
return ERR_PTR(-ECHILD);
link = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!link)
return ERR_PTR(-ENOMEM);
args.in.h.opcode = FUSE_READLINK;
args.in.h.nodeid = get_node_id(inode);
args.out.argvar = 1;
args.out.numargs = 1;
args.out.args[0].size = PAGE_SIZE - 1;
args.out.args[0].value = link;
ret = fuse_simple_request(fc, &args);
if (ret < 0) {
kfree(link);
link = ERR_PTR(ret);
} else {
link[ret] = '\0';
set_delayed_call(done, kfree_link, link);
}
fuse_invalidate_atime(inode);
return link;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 164 | 81.19% | 4 | 44.44% |
al viro | al viro | 37 | 18.32% | 4 | 44.44% |
andrew gallagher | andrew gallagher | 1 | 0.50% | 1 | 11.11% |
| Total | 202 | 100.00% | 9 | 100.00% |
static int fuse_dir_open(struct inode *inode, struct file *file)
{
return fuse_open_common(inode, file, true);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 26 | 100.00% | 4 | 100.00% |
| Total | 26 | 100.00% | 4 | 100.00% |
static int fuse_dir_release(struct inode *inode, struct file *file)
{
fuse_release_common(file, FUSE_RELEASEDIR);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 26 | 100.00% | 4 | 100.00% |
| Total | 26 | 100.00% | 4 | 100.00% |
static int fuse_dir_fsync(struct file *file, loff_t start, loff_t end,
int datasync)
{
return fuse_fsync_common(file, start, end, datasync, 1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 24 | 70.59% | 1 | 50.00% |
josef bacik | josef bacik | 10 | 29.41% | 1 | 50.00% |
| Total | 34 | 100.00% | 2 | 100.00% |
static long fuse_dir_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
struct fuse_conn *fc = get_fuse_conn(file->f_mapping->host);
/* FUSE_IOCTL_DIR only supported for API version >= 7.18 */
if (fc->minor < 18)
return -ENOTTY;
return fuse_ioctl_common(file, cmd, arg, FUSE_IOCTL_DIR);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 58 | 100.00% | 1 | 100.00% |
| Total | 58 | 100.00% | 1 | 100.00% |
static long fuse_dir_compat_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
struct fuse_conn *fc = get_fuse_conn(file->f_mapping->host);
if (fc->minor < 18)
return -ENOTTY;
return fuse_ioctl_common(file, cmd, arg,
FUSE_IOCTL_COMPAT | FUSE_IOCTL_DIR);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 59 | 100.00% | 1 | 100.00% |
| Total | 59 | 100.00% | 1 | 100.00% |
static bool update_mtime(unsigned ivalid, bool trust_local_mtime)
{
/* Always update if mtime is explicitly set */
if (ivalid & ATTR_MTIME_SET)
return true;
/* Or if kernel i_mtime is the official one */
if (trust_local_mtime)
return true;
/* If it's an open(O_TRUNC) or an ftruncate(), don't update */
if ((ivalid & ATTR_SIZE) && (ivalid & (ATTR_OPEN | ATTR_FILE)))
return false;
/* In all other cases update */
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 45 | 80.36% | 1 | 50.00% |
maxim patlasov | maxim patlasov | 11 | 19.64% | 1 | 50.00% |
| Total | 56 | 100.00% | 2 | 100.00% |
static void iattr_to_fattr(struct iattr *iattr, struct fuse_setattr_in *arg,
bool trust_local_cmtime)
{
unsigned ivalid = iattr->ia_valid;
if (ivalid & ATTR_MODE)
arg->valid |= FATTR_MODE, arg->mode = iattr->ia_mode;
if (ivalid & ATTR_UID)
arg->valid |= FATTR_UID, arg->uid = from_kuid(&init_user_ns, iattr->ia_uid);
if (ivalid & ATTR_GID)
arg->valid |= FATTR_GID, arg->gid = from_kgid(&init_user_ns, iattr->ia_gid);
if (ivalid & ATTR_SIZE)
arg->valid |= FATTR_SIZE, arg->size = iattr->ia_size;
if (ivalid & ATTR_ATIME) {
arg->valid |= FATTR_ATIME;
arg->atime = iattr->ia_atime.tv_sec;
arg->atimensec = iattr->ia_atime.tv_nsec;
if (!(ivalid & ATTR_ATIME_SET))
arg->valid |= FATTR_ATIME_NOW;
}
if ((ivalid & ATTR_MTIME) && update_mtime(ivalid, trust_local_cmtime)) {
arg->valid |= FATTR_MTIME;
arg->mtime = iattr->ia_mtime.tv_sec;
arg->mtimensec = iattr->ia_mtime.tv_nsec;
if (!(ivalid & ATTR_MTIME_SET) && !trust_local_cmtime)
arg->valid |= FATTR_MTIME_NOW;
}
if ((ivalid & ATTR_CTIME) && trust_local_cmtime) {
arg->valid |= FATTR_CTIME;
arg->ctime = iattr->ia_ctime.tv_sec;
arg->ctimensec = iattr->ia_ctime.tv_nsec;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 208 | 78.20% | 4 | 57.14% |
maxim patlasov | maxim patlasov | 46 | 17.29% | 2 | 28.57% |
eric w. biederman | eric w. biederman | 12 | 4.51% | 1 | 14.29% |
| Total | 266 | 100.00% | 7 | 100.00% |
/*
* Prevent concurrent writepages on inode
*
* This is done by adding a negative bias to the inode write counter
* and waiting for all pending writes to finish.
*/
void fuse_set_nowrite(struct inode *inode)
{
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
BUG_ON(!inode_is_locked(inode));
spin_lock(&fc->lock);
BUG_ON(fi->writectr < 0);
fi->writectr += FUSE_NOWRITE;
spin_unlock(&fc->lock);
wait_event(fi->page_waitq, fi->writectr == FUSE_NOWRITE);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 82 | 98.80% | 1 | 50.00% |
al viro | al viro | 1 | 1.20% | 1 | 50.00% |
| Total | 83 | 100.00% | 2 | 100.00% |
/*
* Allow writepages on inode
*
* Remove the bias from the writecounter and send any queued
* writepages.
*/
static void __fuse_release_nowrite(struct inode *inode)
{
struct fuse_inode *fi = get_fuse_inode(inode);
BUG_ON(fi->writectr != FUSE_NOWRITE);
fi->writectr = 0;
fuse_flush_writepages(inode);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 41 | 100.00% | 1 | 100.00% |
| Total | 41 | 100.00% | 1 | 100.00% |
void fuse_release_nowrite(struct inode *inode)
{
struct fuse_conn *fc = get_fuse_conn(inode);
spin_lock(&fc->lock);
__fuse_release_nowrite(inode);
spin_unlock(&fc->lock);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 41 | 100.00% | 1 | 100.00% |
| Total | 41 | 100.00% | 1 | 100.00% |
static void fuse_setattr_fill(struct fuse_conn *fc, struct fuse_args *args,
struct inode *inode,
struct fuse_setattr_in *inarg_p,
struct fuse_attr_out *outarg_p)
{
args->in.h.opcode = FUSE_SETATTR;
args->in.h.nodeid = get_node_id(inode);
args->in.numargs = 1;
args->in.args[0].size = sizeof(*inarg_p);
args->in.args[0].value = inarg_p;
args->out.numargs = 1;
args->out.args[0].size = sizeof(*outarg_p);
args->out.args[0].value = outarg_p;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maxim patlasov | maxim patlasov | 112 | 86.15% | 2 | 33.33% |
miklos szeredi | miklos szeredi | 18 | 13.85% | 4 | 66.67% |
| Total | 130 | 100.00% | 6 | 100.00% |
/*
* Flush inode->i_mtime to the server
*/
int fuse_flush_times(struct inode *inode, struct fuse_file *ff)
{
struct fuse_conn *fc = get_fuse_conn(inode);
FUSE_ARGS(args);
struct fuse_setattr_in inarg;
struct fuse_attr_out outarg;
memset(&inarg, 0, sizeof(inarg));
memset(&outarg, 0, sizeof(outarg));
inarg.valid = FATTR_MTIME;
inarg.mtime = inode->i_mtime.tv_sec;
inarg.mtimensec = inode->i_mtime.tv_nsec;
if (fc->minor >= 23) {
inarg.valid |= FATTR_CTIME;
inarg.ctime = inode->i_ctime.tv_sec;
inarg.ctimensec = inode->i_ctime.tv_nsec;
}
if (ff) {
inarg.valid |= FATTR_FH;
inarg.fh = ff->fh;
}
fuse_setattr_fill(fc, &args, inode, &inarg, &outarg);
return fuse_simple_request(fc, &args);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
maxim patlasov | maxim patlasov | 124 | 72.51% | 3 | 42.86% |
miklos szeredi | miklos szeredi | 47 | 27.49% | 4 | 57.14% |
| Total | 171 | 100.00% | 7 | 100.00% |
/*
* Set attributes, and at the same time refresh them.
*
* Truncation is slightly complicated, because the 'truncate' request
* may fail, in which case we don't want to touch the mapping.
* vmtruncate() doesn't allow for this case, so do the rlimit checking
* and the actual truncation by hand.
*/
int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
struct file *file)
{
struct inode *inode = d_inode(dentry);
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
FUSE_ARGS(args);
struct fuse_setattr_in inarg;
struct fuse_attr_out outarg;
bool is_truncate = false;
bool is_wb = fc->writeback_cache;
loff_t oldsize;
int err;
bool trust_local_cmtime = is_wb && S_ISREG(inode->i_mode);
if (!fc->default_permissions)
attr->ia_valid |= ATTR_FORCE;
err = setattr_prepare(dentry, attr);
if (err)
return err;
if (attr->ia_valid & ATTR_OPEN) {
if (fc->atomic_o_trunc)
return 0;
file = NULL;
}
if (attr->ia_valid & ATTR_SIZE)
is_truncate = true;
if (is_truncate) {
fuse_set_nowrite(inode);
set_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);
if (trust_local_cmtime && attr->ia_size != inode->i_size)
attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
}
memset(&inarg, 0, sizeof(inarg));
memset(&outarg, 0, sizeof(outarg));
iattr_to_fattr(attr, &inarg, trust_local_cmtime);
if (file) {
struct fuse_file *ff = file->private_data;
inarg.valid |= FATTR_FH;
inarg.fh = ff->fh;
}
if (attr->ia_valid & ATTR_SIZE) {
/* For mandatory locking in truncate */
inarg.valid |= FATTR_LOCKOWNER;
inarg.lock_owner = fuse_lock_owner_id(fc, current->files);
}
fuse_setattr_fill(fc, &args, inode, &inarg, &outarg);
err = fuse_simple_request(fc, &args);
if (err) {
if (err == -EINTR)
fuse_invalidate_attr(inode);
goto error;
}
if ((inode->i_mode ^ outarg.attr.mode) & S_IFMT) {
make_bad_inode(inode);
err = -EIO;
goto error;
}
spin_lock(&fc->lock);
/* the kernel maintains i_mtime locally */
if (trust_local_cmtime) {
if (attr->ia_valid & ATTR_MTIME)
inode->i_mtime = attr->ia_mtime;
if (attr->ia_valid & ATTR_CTIME)
inode->i_ctime = attr->ia_ctime;
/* FIXME: clear I_DIRTY_SYNC? */
}
fuse_change_attributes_common(inode, &outarg.attr,
attr_timeout(&outarg));
oldsize = inode->i_size;
/* see the comment in fuse_change_attributes() */
if (!is_wb || is_truncate || !S_ISREG(inode->i_mode))
i_size_write(inode, outarg.attr.size);
if (is_truncate) {
/* NOTE: this may release/reacquire fc->lock */
__fuse_release_nowrite(inode);
}
spin_unlock(&fc->lock);
/*
* Only call invalidate_inode_pages2() after removing
* FUSE_NOWRITE, otherwise fuse_launder_page() would deadlock.
*/
if ((is_truncate || !is_wb) &&
S_ISREG(inode->i_mode) && oldsize != outarg.attr.size) {
truncate_pagecache(inode, outarg.attr.size);
invalidate_inode_pages2(inode->i_mapping);
}
clear_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);
return 0;
error:
if (is_truncate)
fuse_release_nowrite(inode);
clear_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 327 | 57.37% | 13 | 61.90% |
maxim patlasov | maxim patlasov | 204 | 35.79% | 4 | 19.05% |
pavel emelianov | pavel emelianov | 23 | 4.04% | 1 | 4.76% |
jan kara | jan kara | 14 | 2.46% | 2 | 9.52% |
nick piggin | nick piggin | 2 | 0.35% | 1 | 4.76% |
| Total | 570 | 100.00% | 21 | 100.00% |
static int fuse_setattr(struct dentry *entry, struct iattr *attr)
{
struct inode *inode = d_inode(entry);
struct fuse_conn *fc = get_fuse_conn(inode);
struct file *file = (attr->ia_valid & ATTR_FILE) ? attr->ia_file : NULL;
int ret;
if (!fuse_allow_current_process(get_fuse_conn(inode)))
return -EACCES;
if (attr->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID)) {
attr->ia_valid &= ~(ATTR_KILL_SUID | ATTR_KILL_SGID |
ATTR_MODE);
/*
* The only sane way to reliably kill suid/sgid is to do it in
* the userspace filesystem
*
* This should be done on write(), truncate() and chown().
*/
if (!fc->handle_killpriv) {
/*
* ia_mode calculation may have used stale i_mode.
* Refresh and recalculate.
*/
ret = fuse_do_getattr(inode, NULL, file);
if (ret)
return ret;
attr->ia_mode = inode->i_mode;
if (inode->i_mode & S_ISUID) {
attr->ia_valid |= ATTR_MODE;
attr->ia_mode &= ~S_ISUID;
}
if ((inode->i_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) {
attr->ia_valid |= ATTR_MODE;
attr->ia_mode &= ~S_ISGID;
}
}
}
if (!attr->ia_valid)
return 0;
ret = fuse_do_setattr(entry, attr, file);
if (!ret) {
/*
* If filesystem supports acls it may have updated acl xattrs in
* the filesystem, so forget cached acls for the inode.
*/
if (fc->posix_acl)
forget_all_cached_acls(inode);
/* Directory mode changed, may need to revalidate access */
if (d_is_dir(entry) && (attr->ia_valid & ATTR_MODE))
fuse_invalidate_entry_cache(entry);
}
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 220 | 84.94% | 5 | 55.56% |
maxim patlasov | maxim patlasov | 23 | 8.88% | 1 | 11.11% |
seth forshee | seth forshee | 12 | 4.63% | 1 | 11.11% |
david howells | david howells | 3 | 1.16% | 1 | 11.11% |
linus torvalds | linus torvalds | 1 | 0.39% | 1 | 11.11% |
| Total | 259 | 100.00% | 9 | 100.00% |
static int fuse_getattr(struct vfsmount *mnt, struct dentry *entry,
struct kstat *stat)
{
struct inode *inode = d_inode(entry);
struct fuse_conn *fc = get_fuse_conn(inode);
if (!fuse_allow_current_process(fc))
return -EACCES;
return fuse_update_attributes(inode, stat, NULL, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 61 | 93.85% | 5 | 71.43% |
david howells | david howells | 3 | 4.62% | 1 | 14.29% |
anatol pomozov | anatol pomozov | 1 | 1.54% | 1 | 14.29% |
| Total | 65 | 100.00% | 7 | 100.00% |
static const struct inode_operations fuse_dir_inode_operations = {
.lookup = fuse_lookup,
.mkdir = fuse_mkdir,
.symlink = fuse_symlink,
.unlink = fuse_unlink,
.rmdir = fuse_rmdir,
.rename = fuse_rename2,
.link = fuse_link,
.setattr = fuse_setattr,
.create = fuse_create,
.atomic_open = fuse_atomic_open,
.mknod = fuse_mknod,
.permission = fuse_permission,
.getattr = fuse_getattr,
.listxattr = fuse_listxattr,
.get_acl = fuse_get_acl,
.set_acl = fuse_set_acl,
};
static const struct file_operations fuse_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
.iterate_shared = fuse_readdir,
.open = fuse_dir_open,
.release = fuse_dir_release,
.fsync = fuse_dir_fsync,
.unlocked_ioctl = fuse_dir_ioctl,
.compat_ioctl = fuse_dir_compat_ioctl,
};
static const struct inode_operations fuse_common_inode_operations = {
.setattr = fuse_setattr,
.permission = fuse_permission,
.getattr = fuse_getattr,
.listxattr = fuse_listxattr,
.get_acl = fuse_get_acl,
.set_acl = fuse_set_acl,
};
static const struct inode_operations fuse_symlink_inode_operations = {
.setattr = fuse_setattr,
.get_link = fuse_get_link,
.getattr = fuse_getattr,
.listxattr = fuse_listxattr,
};
void fuse_init_common(struct inode *inode)
{
inode->i_op = &fuse_common_inode_operations;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 17 | 100.00% | 1 | 100.00% |
| Total | 17 | 100.00% | 1 | 100.00% |
void fuse_init_dir(struct inode *inode)
{
inode->i_op = &fuse_dir_inode_operations;
inode->i_fop = &fuse_dir_operations;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
void fuse_init_symlink(struct inode *inode)
{
inode->i_op = &fuse_symlink_inode_operations;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 17 | 100.00% | 1 | 100.00% |
| Total | 17 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
miklos szeredi | miklos szeredi | 7368 | 77.03% | 90 | 56.96% |
maxim patlasov | maxim patlasov | 630 | 6.59% | 9 | 5.70% |
anand v. avati | anand v. avati | 538 | 5.62% | 2 | 1.27% |
john muir | john muir | 277 | 2.90% | 2 | 1.27% |
al viro | al viro | 235 | 2.46% | 24 | 15.19% |
feng shuo | feng shuo | 123 | 1.29% | 1 | 0.63% |
david howells | david howells | 94 | 0.98% | 4 | 2.53% |
pavel emelianov | pavel emelianov | 56 | 0.59% | 1 | 0.63% |
seth forshee | seth forshee | 54 | 0.56% | 2 | 1.27% |
eric w. biederman | eric w. biederman | 48 | 0.50% | 1 | 0.63% |
andrew gallagher | andrew gallagher | 26 | 0.27% | 1 | 0.63% |
linus torvalds | linus torvalds | 23 | 0.24% | 3 | 1.90% |
niels de vos | niels de vos | 16 | 0.17% | 1 | 0.63% |
jan kara | jan kara | 14 | 0.15% | 2 | 1.27% |
josef bacik | josef bacik | 10 | 0.10% | 1 | 0.63% |
eric wong | eric wong | 10 | 0.10% | 1 | 0.63% |
anatol pomozov | anatol pomozov | 9 | 0.09% | 1 | 0.63% |
pavel shilovsky | pavel shilovsky | 8 | 0.08% | 1 | 0.63% |
nick piggin | nick piggin | 6 | 0.06% | 2 | 1.27% |
dave hansen | dave hansen | 5 | 0.05% | 1 | 0.63% |
arjan van de ven | arjan van de ven | 4 | 0.04% | 2 | 1.27% |
tejun heo | tejun heo | 4 | 0.04% | 2 | 1.27% |
eric paris | eric paris | 4 | 0.04% | 1 | 0.63% |
deepa dinamani | deepa dinamani | 1 | 0.01% | 1 | 0.63% |
timo savola | timo savola | 1 | 0.01% | 1 | 0.63% |
david sheets | david sheets | 1 | 0.01% | 1 | 0.63% |
| Total | 9565 | 100.00% | 158 | 100.00% |
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