cregit-Linux how code gets into the kernel

Release 4.10 fs/jfs/file.c

Directory: fs/jfs
 *   Copyright (C) International Business Machines Corp., 2000-2002
 *   Portions Copyright (C) Christoph Hellwig, 2001-2002
 *   This program is free software;  you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
 *   the GNU General Public License for more details.
 *   You should have received a copy of the GNU General Public License
 *   along with this program;  if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/posix_acl.h>
#include <linux/quotaops.h>
#include "jfs_incore.h"
#include "jfs_inode.h"
#include "jfs_dmap.h"
#include "jfs_txnmgr.h"
#include "jfs_xattr.h"
#include "jfs_acl.h"
#include "jfs_debug.h"

int jfs_fsync(struct file *file, loff_t start, loff_t end, int datasync) { struct inode *inode = file->f_mapping->host; int rc = 0; rc = filemap_write_and_wait_range(inode->i_mapping, start, end); if (rc) return rc; inode_lock(inode); if (!(inode->i_state & I_DIRTY_ALL) || (datasync && !(inode->i_state & I_DIRTY_DATASYNC))) { /* Make sure committed changes hit the disk */ jfs_flush_journal(JFS_SBI(inode->i_sb)->log, 1); inode_unlock(inode); return rc; } rc |= jfs_commit_inode(inode, 1); inode_unlock(inode); return rc ? -EIO : 0; }


dave kleikampdave kleikamp8564.89%342.86%
josef bacikjosef bacik3829.01%114.29%
christoph hellwigchristoph hellwig43.05%114.29%
al viroal viro32.29%114.29%
theodore tsotheodore tso10.76%114.29%

static int jfs_open(struct inode *inode, struct file *file) { int rc; if ((rc = dquot_file_open(inode, file))) return rc; /* * We attempt to allow only one "active" file open per aggregate * group. Otherwise, appending to files in parallel can cause * fragmentation within the files. * * If the file is empty, it was probably just created and going * to be written to. If it has a size, we'll hold off until the * file is actually grown. */ if (S_ISREG(inode->i_mode) && file->f_mode & FMODE_WRITE && (inode->i_size == 0)) { struct jfs_inode_info *ji = JFS_IP(inode); spin_lock_irq(&ji->ag_lock); if (ji->active_ag == -1) { struct jfs_sb_info *jfs_sb = JFS_SBI(inode->i_sb); ji->active_ag = BLKTOAG(addressPXD(&ji->ixpxd), jfs_sb); atomic_inc(&jfs_sb->bmap->db_active[ji->active_ag]); } spin_unlock_irq(&ji->ag_lock); } return 0; }


dave kleikampdave kleikamp14499.31%480.00%
christoph hellwigchristoph hellwig10.69%120.00%

static int jfs_release(struct inode *inode, struct file *file) { struct jfs_inode_info *ji = JFS_IP(inode); spin_lock_irq(&ji->ag_lock); if (ji->active_ag != -1) { struct bmap *bmap = JFS_SBI(inode->i_sb)->bmap; atomic_dec(&bmap->db_active[ji->active_ag]); ji->active_ag = -1; } spin_unlock_irq(&ji->ag_lock); return 0; }


dave kleikampdave kleikamp90100.00%2100.00%

int jfs_setattr(struct dentry *dentry, struct iattr *iattr) { struct inode *inode = d_inode(dentry); int rc; rc = setattr_prepare(dentry, iattr); if (rc) return rc; if (is_quota_modification(inode, iattr)) { rc = dquot_initialize(inode); if (rc) return rc; } if ((iattr->ia_valid & ATTR_UID && !uid_eq(iattr->ia_uid, inode->i_uid)) || (iattr->ia_valid & ATTR_GID && !gid_eq(iattr->ia_gid, inode->i_gid))) { rc = dquot_transfer(inode, iattr); if (rc) return rc; } if ((iattr->ia_valid & ATTR_SIZE) && iattr->ia_size != i_size_read(inode)) { inode_dio_wait(inode); rc = inode_newsize_ok(inode, iattr->ia_size); if (rc) return rc; truncate_setsize(inode, iattr->ia_size); jfs_truncate(inode); } setattr_copy(inode, iattr); mark_inode_dirty(inode); if (iattr->ia_valid & ATTR_MODE) rc = posix_acl_chmod(inode, inode->i_mode); return rc; }


christoph hellwigchristoph hellwig17579.19%753.85%
marco stornellimarco stornelli156.79%17.69%
dave kleikampdave kleikamp114.98%17.69%
eric w. biedermaneric w. biederman104.52%17.69%
dmitriy monakhovdmitriy monakhov52.26%17.69%
david howellsdavid howells31.36%17.69%
jan karajan kara20.90%17.69%

const struct inode_operations jfs_file_inode_operations = { .listxattr = jfs_listxattr, .setattr = jfs_setattr, #ifdef CONFIG_JFS_POSIX_ACL .get_acl = jfs_get_acl, .set_acl = jfs_set_acl, #endif }; const struct file_operations jfs_file_operations = { .open = jfs_open, .llseek = generic_file_llseek, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .splice_read = generic_file_splice_read, .splice_write = iter_file_splice_write, .fsync = jfs_fsync, .release = jfs_release, .unlocked_ioctl = jfs_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = jfs_compat_ioctl, #endif };

Overall Contributors

dave kleikampdave kleikamp41357.20%1435.00%
christoph hellwigchristoph hellwig19927.56%922.50%
josef bacikjosef bacik385.26%12.50%
marco stornellimarco stornelli152.08%12.50%
andi kleenandi kleen131.80%25.00%
eric w. biedermaneric w. biederman101.39%12.50%
daniel drakedaniel drake91.25%12.50%
al viroal viro81.11%410.00%
dmitriy monakhovdmitriy monakhov50.69%12.50%
herbert poetzlherbert poetzl40.55%12.50%
david howellsdavid howells30.42%12.50%
arjan van de venarjan van de ven20.28%25.00%
jan karajan kara20.28%12.50%
theodore tsotheodore tso10.14%12.50%
Directory: fs/jfs
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