cregit-Linux how code gets into the kernel

Release 4.10 fs/ocfs2/inode.c

Directory: fs/ocfs2
/* -*- mode: c; c-basic-offset: 8; -*-
 * vim: noexpandtab sw=8 ts=8 sts=0:
 *
 * inode.c
 *
 * vfs' aops, fops, dops and iops
 *
 * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
 *
 * 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
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See 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 021110-1307, USA.
 */

#include <linux/fs.h>
#include <linux/types.h>
#include <linux/highmem.h>
#include <linux/pagemap.h>
#include <linux/quotaops.h>

#include <asm/byteorder.h>

#include <cluster/masklog.h>

#include "ocfs2.h"

#include "alloc.h"
#include "dir.h"
#include "blockcheck.h"
#include "dlmglue.h"
#include "extent_map.h"
#include "file.h"
#include "heartbeat.h"
#include "inode.h"
#include "journal.h"
#include "namei.h"
#include "suballoc.h"
#include "super.h"
#include "symlink.h"
#include "sysfile.h"
#include "uptodate.h"
#include "xattr.h"
#include "refcounttree.h"
#include "ocfs2_trace.h"
#include "filecheck.h"

#include "buffer_head_io.h"


struct ocfs2_find_inode_args
{
	
u64		fi_blkno;
	
unsigned long	fi_ino;
	
unsigned int	fi_flags;
	
unsigned int	fi_sysfile_type;
};


static struct lock_class_key ocfs2_sysfile_lock_key[NUM_SYSTEM_INODES];

static int ocfs2_read_locked_inode(struct inode *inode,
				   struct ocfs2_find_inode_args *args);
static int ocfs2_init_locked_inode(struct inode *inode, void *opaque);
static int ocfs2_find_actor(struct inode *inode, void *opaque);
static int ocfs2_truncate_for_delete(struct ocfs2_super *osb,
				    struct inode *inode,
				    struct buffer_head *fe_bh);

static int ocfs2_filecheck_read_inode_block_full(struct inode *inode,
						 struct buffer_head **bh,
						 int flags, int type);
static int ocfs2_filecheck_validate_inode_block(struct super_block *sb,
						struct buffer_head *bh);
static int ocfs2_filecheck_repair_inode_block(struct super_block *sb,
					      struct buffer_head *bh);


void ocfs2_set_inode_flags(struct inode *inode) { unsigned int flags = OCFS2_I(inode)->ip_attr; inode->i_flags &= ~(S_IMMUTABLE | S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC); if (flags & OCFS2_IMMUTABLE_FL) inode->i_flags |= S_IMMUTABLE; if (flags & OCFS2_SYNC_FL) inode->i_flags |= S_SYNC; if (flags & OCFS2_APPEND_FL) inode->i_flags |= S_APPEND; if (flags & OCFS2_NOATIME_FL) inode->i_flags |= S_NOATIME; if (flags & OCFS2_DIRSYNC_FL) inode->i_flags |= S_DIRSYNC; }

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herbert poetzlherbert poetzl98100.00%1100.00%
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/* Propagate flags from i_flags to OCFS2_I(inode)->ip_attr */
void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi) { unsigned int flags = oi->vfs_inode.i_flags; oi->ip_attr &= ~(OCFS2_SYNC_FL|OCFS2_APPEND_FL| OCFS2_IMMUTABLE_FL|OCFS2_NOATIME_FL|OCFS2_DIRSYNC_FL); if (flags & S_SYNC) oi->ip_attr |= OCFS2_SYNC_FL; if (flags & S_APPEND) oi->ip_attr |= OCFS2_APPEND_FL; if (flags & S_IMMUTABLE) oi->ip_attr |= OCFS2_IMMUTABLE_FL; if (flags & S_NOATIME) oi->ip_attr |= OCFS2_NOATIME_FL; if (flags & S_DIRSYNC) oi->ip_attr |= OCFS2_DIRSYNC_FL; }

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jan karajan kara97100.00%1100.00%
Total97100.00%1100.00%


struct inode *ocfs2_ilookup(struct super_block *sb, u64 blkno) { struct ocfs2_find_inode_args args; args.fi_blkno = blkno; args.fi_flags = 0; args.fi_ino = ino_from_blkno(sb, blkno); args.fi_sysfile_type = 0; return ilookup5(sb, blkno, ocfs2_find_actor, &args); }

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wengang wangwengang wang61100.00%1100.00%
Total61100.00%1100.00%


struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags, int sysfile_type) { int rc = 0; struct inode *inode = NULL; struct super_block *sb = osb->sb; struct ocfs2_find_inode_args args; journal_t *journal = OCFS2_SB(sb)->journal->j_journal; trace_ocfs2_iget_begin((unsigned long long)blkno, flags, sysfile_type); /* Ok. By now we've either got the offsets passed to us by the * caller, or we just pulled them off the bh. Lets do some * sanity checks to make sure they're OK. */ if (blkno == 0) { inode = ERR_PTR(-EINVAL); mlog_errno(PTR_ERR(inode)); goto bail; } args.fi_blkno = blkno; args.fi_flags = flags; args.fi_ino = ino_from_blkno(sb, blkno); args.fi_sysfile_type = sysfile_type; inode = iget5_locked(sb, args.fi_ino, ocfs2_find_actor, ocfs2_init_locked_inode, &args); /* inode was *not* in the inode cache. 2.6.x requires * us to do our own read_inode call and unlock it * afterwards. */ if (inode == NULL) { inode = ERR_PTR(-ENOMEM); mlog_errno(PTR_ERR(inode)); goto bail; } trace_ocfs2_iget5_locked(inode->i_state); if (inode->i_state & I_NEW) { rc = ocfs2_read_locked_inode(inode, &args); unlock_new_inode(inode); } if (is_bad_inode(inode)) { iput(inode); inode = ERR_PTR(rc); goto bail; } /* * Set transaction id's of transactions that have to be committed * to finish f[data]sync. We set them to currently running transaction * as we cannot be sure that the inode or some of its metadata isn't * part of the transaction - the inode could have been reclaimed and * now it is reread from disk. */ if (journal) { transaction_t *transaction; tid_t tid; struct ocfs2_inode_info *oi = OCFS2_I(inode); read_lock(&journal->j_state_lock); if (journal->j_running_transaction) transaction = journal->j_running_transaction; else transaction = journal->j_committing_transaction; if (transaction) tid = transaction->t_tid; else tid = journal->j_commit_sequence; read_unlock(&journal->j_state_lock); oi->i_sync_tid = tid; oi->i_datasync_tid = tid; } bail: if (!IS_ERR(inode)) { trace_ocfs2_iget_end(inode, (unsigned long long)OCFS2_I(inode)->ip_blkno); } return inode; }

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mark fashehmark fasheh18753.12%337.50%
darrick j. wongdarrick j. wong10128.69%112.50%
tao matao ma4011.36%225.00%
gang hegang he143.98%112.50%
jan karajan kara102.84%112.50%
Total352100.00%8100.00%

/* * here's how inodes get read from disk: * iget5_locked -> find_actor -> OCFS2_FIND_ACTOR * found? : return the in-memory inode * not found? : get_new_inode -> OCFS2_INIT_LOCKED_INODE */
static int ocfs2_find_actor(struct inode *inode, void *opaque) { struct ocfs2_find_inode_args *args = NULL; struct ocfs2_inode_info *oi = OCFS2_I(inode); int ret = 0; args = opaque; mlog_bug_on_msg(!inode, "No inode in find actor!\n"); trace_ocfs2_find_actor(inode, inode->i_ino, opaque, args->fi_blkno); if (oi->ip_blkno != args->fi_blkno) goto bail; ret = 1; bail: return ret; }

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mark fashehmark fasheh7182.56%150.00%
tao matao ma1517.44%150.00%
Total86100.00%2100.00%

/* * initialize the new inode, but don't do anything that would cause * us to sleep. * return 0 on success, 1 on failure */
static int ocfs2_init_locked_inode(struct inode *inode, void *opaque) { struct ocfs2_find_inode_args *args = opaque; static struct lock_class_key ocfs2_quota_ip_alloc_sem_key, ocfs2_file_ip_alloc_sem_key; inode->i_ino = args->fi_ino; OCFS2_I(inode)->ip_blkno = args->fi_blkno; if (args->fi_sysfile_type != 0) lockdep_set_class(&inode->i_rwsem, &ocfs2_sysfile_lock_key[args->fi_sysfile_type]); if (args->fi_sysfile_type == USER_QUOTA_SYSTEM_INODE || args->fi_sysfile_type == GROUP_QUOTA_SYSTEM_INODE || args->fi_sysfile_type == LOCAL_USER_QUOTA_SYSTEM_INODE || args->fi_sysfile_type == LOCAL_GROUP_QUOTA_SYSTEM_INODE) lockdep_set_class(&OCFS2_I(inode)->ip_alloc_sem, &ocfs2_quota_ip_alloc_sem_key); else lockdep_set_class(&OCFS2_I(inode)->ip_alloc_sem, &ocfs2_file_ip_alloc_sem_key); return 0; }

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jan karajan kara8565.38%250.00%
mark fashehmark fasheh4433.85%125.00%
al viroal viro10.77%125.00%
Total130100.00%4100.00%


void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe, int create_ino) { struct super_block *sb; struct ocfs2_super *osb; int use_plocks = 1; sb = inode->i_sb; osb = OCFS2_SB(sb); if ((osb->s_mount_opt & OCFS2_MOUNT_LOCALFLOCKS) || ocfs2_mount_local(osb) || !ocfs2_stack_supports_plocks()) use_plocks = 0; /* * These have all been checked by ocfs2_read_inode_block() or set * by ocfs2_mknod_locked(), so a failure is a code bug. */ BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); /* This means that read_inode cannot create a superblock inode today. change if that is needed. */ BUG_ON(!(fe->i_flags & cpu_to_le32(OCFS2_VALID_FL))); BUG_ON(le32_to_cpu(fe->i_fs_generation) != osb->fs_generation); OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr); OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features); inode->i_version = 1; inode->i_generation = le32_to_cpu(fe->i_generation); inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev)); inode->i_mode = le16_to_cpu(fe->i_mode); i_uid_write(inode, le32_to_cpu(fe->i_uid)); i_gid_write(inode, le32_to_cpu(fe->i_gid)); /* Fast symlinks will have i_size but no allocated clusters. */ if (S_ISLNK(inode->i_mode) && !fe->i_clusters) { inode->i_blocks = 0; inode->i_mapping->a_ops = &ocfs2_fast_symlink_aops; } else { inode->i_blocks = ocfs2_inode_sector_count(inode); inode->i_mapping->a_ops = &ocfs2_aops; } inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime); inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec); inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime); inode->i_mtime.tv_nsec = le32_to_cpu(fe->i_mtime_nsec); inode->i_ctime.tv_sec = le64_to_cpu(fe->i_ctime); inode->i_ctime.tv_nsec = le32_to_cpu(fe->i_ctime_nsec); if (OCFS2_I(inode)->ip_blkno != le64_to_cpu(fe->i_blkno)) mlog(ML_ERROR, "ip_blkno %llu != i_blkno %llu!\n", (unsigned long long)OCFS2_I(inode)->ip_blkno, (unsigned long long)le64_to_cpu(fe->i_blkno)); set_nlink(inode, ocfs2_read_links_count(fe)); trace_ocfs2_populate_inode(OCFS2_I(inode)->ip_blkno, le32_to_cpu(fe->i_flags)); if (fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) { OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SYSTEM_FILE; inode->i_flags |= S_NOQUOTA; } if (fe->i_flags & cpu_to_le32(OCFS2_LOCAL_ALLOC_FL)) { OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP; } else if (fe->i_flags & cpu_to_le32(OCFS2_BITMAP_FL)) { OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP; } else if (fe->i_flags & cpu_to_le32(OCFS2_QUOTA_FL)) { inode->i_flags |= S_NOQUOTA; } else if (fe->i_flags & cpu_to_le32(OCFS2_SUPER_BLOCK_FL)) { /* we can't actually hit this as read_inode can't * handle superblocks today ;-) */ BUG(); } switch (inode->i_mode & S_IFMT) { case S_IFREG: if (use_plocks) inode->i_fop = &ocfs2_fops; else inode->i_fop = &ocfs2_fops_no_plocks; inode->i_op = &ocfs2_file_iops; i_size_write(inode, le64_to_cpu(fe->i_size)); break; case S_IFDIR: inode->i_op = &ocfs2_dir_iops; if (use_plocks) inode->i_fop = &ocfs2_dops; else inode->i_fop = &ocfs2_dops_no_plocks; i_size_write(inode, le64_to_cpu(fe->i_size)); OCFS2_I(inode)->ip_dir_lock_gen = 1; break; case S_IFLNK: inode->i_op = &ocfs2_symlink_inode_operations; inode_nohighmem(inode); i_size_write(inode, le64_to_cpu(fe->i_size)); break; default: inode->i_op = &ocfs2_special_file_iops; init_special_inode(inode, inode->i_mode, inode->i_rdev); break; } if (create_ino) { inode->i_ino = ino_from_blkno(inode->i_sb, le64_to_cpu(fe->i_blkno)); /* * If we ever want to create system files from kernel, * the generation argument to * ocfs2_inode_lock_res_init() will have to change. */ BUG_ON(le32_to_cpu(fe->i_flags) & OCFS2_SYSTEM_FL); ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres, OCFS2_LOCK_TYPE_META, 0, inode); ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres, OCFS2_LOCK_TYPE_OPEN, 0, inode); } ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_rw_lockres, OCFS2_LOCK_TYPE_RW, inode->i_generation, inode); ocfs2_set_inode_flags(inode); OCFS2_I(inode)->ip_last_used_slot = 0; OCFS2_I(inode)->ip_last_used_group = 0; if (S_ISDIR(inode->i_mode)) ocfs2_resv_set_type(&OCFS2_I(inode)->ip_la_data_resv, OCFS2_RESV_FLAG_DIR); }

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mark fashehmark fasheh69083.64%1045.45%
tao matao ma354.24%29.09%
jan karajan kara283.39%29.09%
al viroal viro182.18%29.09%
tiger yangtiger yang172.06%14.55%
joel beckerjoel becker111.33%14.55%
goldwyn rodriguesgoldwyn rodrigues91.09%14.55%
eric w. biedermaneric w. biederman80.97%14.55%
herbert poetzlherbert poetzl50.61%14.55%
miklos szeredimiklos szeredi40.48%14.55%
Total825100.00%22100.00%


static int ocfs2_read_locked_inode(struct inode *inode, struct ocfs2_find_inode_args *args) { struct super_block *sb; struct ocfs2_super *osb; struct ocfs2_dinode *fe; struct buffer_head *bh = NULL; int status, can_lock, lock_level = 0; u32 generation = 0; status = -EINVAL; sb = inode->i_sb; osb = OCFS2_SB(sb); /* * To improve performance of cold-cache inode stats, we take * the cluster lock here if possible. * * Generally, OCFS2 never trusts the contents of an inode * unless it's holding a cluster lock, so taking it here isn't * a correctness issue as much as it is a performance * improvement. * * There are three times when taking the lock is not a good idea: * * 1) During startup, before we have initialized the DLM. * * 2) If we are reading certain system files which never get * cluster locks (local alloc, truncate log). * * 3) If the process doing the iget() is responsible for * orphan dir recovery. We're holding the orphan dir lock and * can get into a deadlock with another process on another * node in ->delete_inode(). * * #1 and #2 can be simply solved by never taking the lock * here for system files (which are the only type we read * during mount). It's a heavier approach, but our main * concern is user-accessible files anyway. * * #3 works itself out because we'll eventually take the * cluster lock before trusting anything anyway. */ can_lock = !(args->fi_flags & OCFS2_FI_FLAG_SYSFILE) && !(args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) && !ocfs2_mount_local(osb); trace_ocfs2_read_locked_inode( (unsigned long long)OCFS2_I(inode)->ip_blkno, can_lock); /* * To maintain backwards compatibility with older versions of * ocfs2-tools, we still store the generation value for system * files. The only ones that actually matter to userspace are * the journals, but it's easier and inexpensive to just flag * all system files similarly. */ if (args->fi_flags & OCFS2_FI_FLAG_SYSFILE) generation = osb->fs_generation; ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres, OCFS2_LOCK_TYPE_META, generation, inode); ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres, OCFS2_LOCK_TYPE_OPEN, 0, inode); if (can_lock) { status = ocfs2_open_lock(inode); if (status) { make_bad_inode(inode); mlog_errno(status); return status; } status = ocfs2_inode_lock(inode, NULL, lock_level); if (status) { make_bad_inode(inode); mlog_errno(status); return status; } } if (args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) { status = ocfs2_try_open_lock(inode, 0); if (status) { make_bad_inode(inode); return status; } } if (can_lock) { if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_CHK) status = ocfs2_filecheck_read_inode_block_full(inode, &bh, OCFS2_BH_IGNORE_CACHE, 0); else if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_FIX) status = ocfs2_filecheck_read_inode_block_full(inode, &bh, OCFS2_BH_IGNORE_CACHE, 1); else status = ocfs2_read_inode_block_full(inode, &bh, OCFS2_BH_IGNORE_CACHE); } else { status = ocfs2_read_blocks_sync(osb, args->fi_blkno, 1, &bh); /* * If buffer is in jbd, then its checksum may not have been * computed as yet. */ if (!status && !buffer_jbd(bh)) { if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_CHK) status = ocfs2_filecheck_validate_inode_block( osb->sb, bh); else if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_FIX) status = ocfs2_filecheck_repair_inode_block( osb->sb, bh); else status = ocfs2_validate_inode_block( osb->sb, bh); } } if (status < 0) { mlog_errno(status); goto bail; } status = -EINVAL; fe = (struct ocfs2_dinode *) bh->b_data; /* * This is a code bug. Right now the caller needs to * understand whether it is asking for a system file inode or * not so the proper lock names can be built. */ mlog_bug_on_msg(!!(fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) != !!(args->fi_flags & OCFS2_FI_FLAG_SYSFILE), "Inode %llu: system file state is ambigous\n", (unsigned long long)args->fi_blkno); if (S_ISCHR(le16_to_cpu(fe->i_mode)) || S_ISBLK(le16_to_cpu(fe->i_mode))) inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev)); ocfs2_populate_inode(inode, fe, 0); BUG_ON(args->fi_blkno != le64_to_cpu(fe->i_blkno)); if (buffer_dirty(bh) && !buffer_jbd(bh)) { if (can_lock) { ocfs2_inode_unlock(inode, lock_level); lock_level = 1; ocfs2_inode_lock(inode, NULL, lock_level); } status = ocfs2_write_block(osb, bh, INODE_CACHE(inode)); if (status < 0) { mlog_errno(status); goto bail; } } status = 0; bail: if (can_lock) ocfs2_inode_unlock(inode, lock_level); if (status < 0) make_bad_inode(inode); brelse(bh); return status; }

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mark fashehmark fasheh32850.77%323.08%
gang hegang he16525.54%17.69%
tiger yangtiger yang7711.92%17.69%
joel beckerjoel becker456.97%430.77%
tao matao ma172.63%17.69%
sunil mushransunil mushran132.01%215.38%
uwe kleine-koeniguwe kleine-koenig10.15%17.69%
Total646100.00%13100.00%


void ocfs2_sync_blockdev(struct super_block *sb) { sync_blockdev(sb->s_bdev); }

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mark fashehmark fasheh17100.00%1100.00%
Total17100.00%1100.00%


static int ocfs2_truncate_for_delete(struct ocfs2_super *osb, struct inode *inode, struct buffer_head *fe_bh) { int status = 0; struct ocfs2_dinode *fe; handle_t *handle = NULL; fe = (struct ocfs2_dinode *) fe_bh->b_data; /* * This check will also skip truncate of inodes with inline * data and fast symlinks. */ if (fe->i_clusters) { if (ocfs2_should_order_data(inode)) ocfs2_begin_ordered_truncate(inode, 0); handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS); if (IS_ERR(handle)) { status = PTR_ERR(handle); handle = NULL; mlog_errno(status); goto out; } status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh, OCFS2_JOURNAL_ACCESS_WRITE); if (status < 0) { mlog_errno(status); goto out; } i_size_write(inode, 0); status = ocfs2_mark_inode_dirty(handle, inode, fe_bh); if (status < 0) { mlog_errno(status); goto out; } ocfs2_commit_trans(osb, handle); handle = NULL; status = ocfs2_commit_truncate(osb, inode, fe_bh); if (status < 0) { mlog_errno(status); goto out; } } out: if (handle) ocfs2_commit_trans(osb, handle); return status; }

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mark fashehmark fasheh20690.35%450.00%
joel beckerjoel becker187.89%337.50%
dan carpenterdan carpenter41.75%112.50%
Total228100.00%8100.00%


static int ocfs2_remove_inode(struct inode *inode, struct buffer_head *di_bh, struct inode *orphan_dir_inode, struct buffer_head *orphan_dir_bh) { int status; struct inode *inode_alloc_inode = NULL; struct buffer_head *inode_alloc_bh = NULL; handle_t *handle; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data; inode_alloc_inode = ocfs2_get_system_file_inode(osb, INODE_ALLOC_SYSTEM_INODE, le16_to_cpu(di->i_suballoc_slot)); if (!inode_alloc_inode) { status = -ENOENT; mlog_errno(status); goto bail; } inode_lock(inode_alloc_inode); status = ocfs2_inode_lock(inode_alloc_inode, &inode_alloc_bh, 1); if (status < 0) { inode_unlock(inode_alloc_inode); mlog_errno(status); goto bail; } handle = ocfs2_start_trans(osb, OCFS2_DELETE_INODE_CREDITS + ocfs2_quota_trans_credits(inode->i_sb)); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); goto bail_unlock; } if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) { status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode, orphan_dir_bh, false); if (status < 0) { mlog_errno(status); goto bail_commit; } } /* set the inodes dtime */ status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh, OCFS2_JOURNAL_ACCESS_WRITE); if (status < 0) { mlog_errno(status); goto bail_commit; } di->i_dtime = cpu_to_le64(ktime_get_real_seconds()); di->i_flags &= cpu_to_le32(~(OCFS2_VALID_FL | OCFS2_ORPHANED_FL)); ocfs2_journal_dirty(handle, di_bh); ocfs2_remove_from_cache(INODE_CACHE(inode), di_bh); dquot_free_inode(inode); status = ocfs2_free_dinode(handle, inode_alloc_inode, inode_alloc_bh, di); if (status < 0) mlog_errno(status); bail_commit: ocfs2_commit_trans(osb, handle); bail_unlock: ocfs2_inode_unlock(inode_alloc_inode, 1); inode_unlock(inode_alloc_inode); brelse(inode_alloc_bh); bail: iput(inode_alloc_inode); return status; }

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mark fashehmark fasheh33187.80%426.67%
li dongyangli dongyang164.24%16.67%
jan karajan kara112.92%16.67%
joel beckerjoel becker71.86%320.00%
joseph qijoseph qi30.80%213.33%
marcin slusarzmarcin slusarz30.80%16.67%
al viroal viro30.80%16.67%
deepa dinamanideepa dinamani20.53%16.67%
christoph hellwigchristoph hellwig10.27%16.67%
Total377100.00%15100.00%

/* * Serialize with orphan dir recovery. If the process doing * recovery on this orphan dir does an iget() with the dir * i_mutex held, we'll deadlock here. Instead we detect this * and exit early - recovery will wipe this inode for us. */
static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb, int slot) { int ret = 0; spin_lock(&osb->osb_lock); if (ocfs2_node_map_test_bit(osb, &osb->osb_recovering_orphan_dirs, slot)) { ret = -EDEADLK; goto out; } /* This signals to the orphan recovery process that it should * wait for us to handle the wipe. */ osb->osb_orphan_wipes[slot]++; out: spin_unlock(&osb->osb_lock); trace_ocfs2_check_orphan_recovery_state(slot, ret); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh7391.25%150.00%
tao matao ma78.75%150.00%
Total80100.00%2100.00%


static void ocfs2_signal_wipe_completion(struct ocfs2_super *osb, int slot) { spin_lock(&osb->osb_lock); osb->osb_orphan_wipes[slot]--; spin_unlock(&osb->osb_lock); wake_up(&osb->osb_wipe_event); }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh46100.00%1100.00%
Total46100.00%1100.00%


static int ocfs2_wipe_inode(struct inode *inode, struct buffer_head *di_bh) { int status, orphaned_slot = -1; struct inode *orphan_dir_inode = NULL; struct buffer_head *orphan_dir_bh = NULL; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data; if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) { orphaned_slot = le16_to_cpu(di->i_orphaned_slot); status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot); if (status) return status; orphan_dir_inode = ocfs2_get_system_file_inode(osb, ORPHAN_DIR_SYSTEM_INODE, orphaned_slot); if (!orphan_dir_inode) { status = -ENOENT; mlog_errno(status); goto bail; } /* Lock the orphan dir. The lock will be held for the entire * delete_inode operation. We do this now to avoid races with * recovery completion on other nodes. */ inode_lock(orphan_dir_inode); status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); if (status < 0) { inode_unlock(orphan_dir_inode); mlog_errno(status); goto bail; } } /* we do this while holding the orphan dir lock because we * don't want recovery being run from another node to try an * inode delete underneath us -- this will result in two nodes * truncating the same file! */ status = ocfs2_truncate_for_delete(osb, inode, di_bh); if (status < 0) { mlog_errno(status); goto bail_unlock_dir; } /* Remove any dir index tree */ if (S_ISDIR(inode->i_mode)) { status = ocfs2_dx_dir_truncate(inode, di_bh); if (status) { mlog_errno(status); goto bail_unlock_dir; } } /*Free extended attribute resources associated with this inode.*/ status = ocfs2_xattr_remove(inode, di_bh); if (status < 0) { mlog_errno(status); goto bail_unlock_dir; } status = ocfs2_remove_refcount_tree(inode, di_bh); if (status < 0) { mlog_errno(status); goto bail_unlock_dir; } status = ocfs2_remove_inode(inode, di_bh, orphan_dir_inode, orphan_dir_bh); if (status < 0) mlog_errno(status); bail_unlock_dir: if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR) return status; ocfs2_inode_unlock(orphan_dir_inode, 1); inode_unlock(orphan_dir_inode); brelse(orphan_dir_bh); bail: iput(orphan_dir_inode); ocfs2_signal_wipe_completion(osb, orphaned_slot); return status; }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh25670.52%541.67%
tiger yangtiger yang4211.57%216.67%
li dongyangli dongyang339.09%18.33%
tao matao ma256.89%18.33%
al viroal viro30.83%18.33%
joel beckerjoel becker30.83%18.33%
joseph qijoseph qi10.28%18.33%
Total363100.00%12100.00%

/* There is a series of simple checks that should be done before a * trylock is even considered. Encapsulate those in this function. */
static int ocfs2_inode_is_valid_to_delete(struct inode *inode) { int ret = 0; struct ocfs2_inode_info *oi = OCFS2_I(inode); struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); trace_ocfs2_inode_is_valid_to_delete(current, osb->dc_task, (unsigned long long)oi->ip_blkno, oi->ip_flags); /* We shouldn't be getting here for the root directory * inode.. */ if (inode == osb->root_inode) { mlog(ML_ERROR, "Skipping delete of root inode.\n"); goto bail; } /* * If we're coming from downconvert_thread we can't go into our own * voting [hello, deadlock city!] so we cannot delete the inode. But * since we dropped last inode ref when downconverting dentry lock, * we cannot have the file open and thus the node doing unlink will * take care of deleting the inode. */ if (current == osb->dc_task) goto bail; spin_lock(&oi->ip_lock); /* OCFS2 *never* deletes system files. This should technically * never get here as system file inodes should always have a * positive link count. */ if (oi->ip_flags & OCFS2_INODE_SYSTEM_FILE) { mlog(ML_ERROR, "Skipping delete of system file %llu\n", (unsigned long long)oi->ip_blkno); goto bail_unlock; } ret = 1; bail_unlock: spin_unlock(&oi->ip_lock); bail: return ret; }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh12784.67%360.00%
tao matao ma2214.67%120.00%
jan karajan kara10.67%120.00%
Total150100.00%5100.00%

/* Query the cluster to determine whether we should wipe an inode from * disk or not. * * Requires the inode to have the cluster lock. */
static int ocfs2_query_inode_wipe(struct inode *inode, struct buffer_head *di_bh, int *wipe) { int status = 0, reason = 0; struct ocfs2_inode_info *oi = OCFS2_I(inode); struct ocfs2_dinode *di; *wipe = 0; trace_ocfs2_query_inode_wipe_begin((unsigned long long)oi->ip_blkno, inode->i_nlink); /* While we were waiting for the cluster lock in * ocfs2_delete_inode, another node might have asked to delete * the inode. Recheck our flags to catch this. */ if (!ocfs2_inode_is_valid_to_delete(inode)) { reason = 1; goto bail; } /* Now that we have an up to date inode, we can double check * the link count. */ if (inode->i_nlink) goto bail; /* Do some basic inode verification... */ di = (struct ocfs2_dinode *) di_bh->b_data; if (!(di->i_flags & cpu_to_le32(OCFS2_ORPHANED_FL)) && !(oi->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) { /* * Inodes in the orphan dir must have ORPHANED_FL. The only * inodes that come back out of the orphan dir are reflink * targets. A reflink target may be moved out of the orphan * dir between the time we scan the directory and the time we * process it. This would lead to HAS_REFCOUNT_FL being set but * ORPHANED_FL not. */ if (di->i_dyn_features & cpu_to_le16(OCFS2_HAS_REFCOUNT_FL)) { reason = 2; goto bail; } /* for lack of a better error? */ status = -EEXIST; mlog(ML_ERROR, "Inode %llu (on-disk %llu) not orphaned! " "Disk flags 0x%x, inode flags 0x%x\n", (unsigned long long)oi->ip_blkno, (unsigned long long)le64_to_cpu(di->i_blkno), le32_to_cpu(di->i_flags), oi->ip_flags); goto bail; } /* has someone already deleted us?! baaad... */ if (di->i_dtime) { status = -EEXIST; mlog_errno(status); goto bail; } /* * This is how ocfs2 determines whether an inode is still live * within the cluster. Every node takes a shared read lock on * the inode open lock in ocfs2_read_locked_inode(). When we * get to ->delete_inode(), each node tries to convert it's * lock to an exclusive. Trylocks are serialized by the inode * meta data lock. If the upconvert succeeds, we know the inode * is no longer live and can be deleted. * * Though we call this with the meta data lock held, the * trylock keeps us from ABBA deadlock. */ status = ocfs2_try_open_lock(inode, 1); if (status == -EAGAIN) { status = 0; reason = 3; goto bail; } if (status < 0) { mlog_errno(status); goto bail; } *wipe = 1; trace_ocfs2_query_inode_wipe_succ(le16_to_cpu(di->i_orphaned_slot)); bail: trace_ocfs2_query_inode_wipe_end(status, reason); return status; }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh22576.27%444.44%
tao matao ma3712.54%111.11%
tristan yetristan ye186.10%111.11%
li dongyangli dongyang93.05%111.11%
tiger yangtiger yang51.69%111.11%
lucas de marchilucas de marchi10.34%111.11%
Total295100.00%9100.00%

/* Support function for ocfs2_delete_inode. Will help us keep the * inode data in a consistent state for clear_inode. Always truncates * pages, optionally sync's them first. */
static void ocfs2_cleanup_delete_inode(struct inode *inode, int sync_data) { trace_ocfs2_cleanup_delete_inode( (unsigned long long)OCFS2_I(inode)->ip_blkno, sync_data); if (sync_data) filemap_write_and_wait(inode->i_mapping); truncate_inode_pages_final(&inode->i_data); }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh4590.00%240.00%
jan karajan kara36.00%120.00%
tao matao ma12.00%120.00%
johannes weinerjohannes weiner12.00%120.00%
Total50100.00%5100.00%


static void ocfs2_delete_inode(struct inode *inode) { int wipe, status; sigset_t oldset; struct buffer_head *di_bh = NULL; struct ocfs2_dinode *di = NULL; trace_ocfs2_delete_inode(inode->i_ino, (unsigned long long)OCFS2_I(inode)->ip_blkno, is_bad_inode(inode)); /* When we fail in read_inode() we mark inode as bad. The second test * catches the case when inode allocation fails before allocating * a block for inode. */ if (is_bad_inode(inode) || !OCFS2_I(inode)->ip_blkno) goto bail; if (!ocfs2_inode_is_valid_to_delete(inode)) { /* It's probably not necessary to truncate_inode_pages * here but we do it for safety anyway (it will most * likely be a no-op anyway) */ ocfs2_cleanup_delete_inode(inode, 0); goto bail; } dquot_initialize(inode); /* We want to block signals in delete_inode as the lock and * messaging paths may return us -ERESTARTSYS. Which would * cause us to exit early, resulting in inodes being orphaned * forever. */ ocfs2_block_signals(&oldset); /* * Synchronize us against ocfs2_get_dentry. We take this in * shared mode so that all nodes can still concurrently * process deletes. */ status = ocfs2_nfs_sync_lock(OCFS2_SB(inode->i_sb), 0); if (status < 0) { mlog(ML_ERROR, "getting nfs sync lock(PR) failed %d\n", status); ocfs2_cleanup_delete_inode(inode, 0); goto bail_unblock; } /* Lock down the inode. This gives us an up to date view of * it's metadata (for verification), and allows us to * serialize delete_inode on multiple nodes. * * Even though we might be doing a truncate, we don't take the * allocation lock here as it won't be needed - nobody will * have the file open. */ status = ocfs2_inode_lock(inode, &di_bh, 1); if (status < 0) { if (status != -ENOENT) mlog_errno(status); ocfs2_cleanup_delete_inode(inode, 0); goto bail_unlock_nfs_sync; } di = (struct ocfs2_dinode *)di_bh->b_data; /* Skip inode deletion and wait for dio orphan entry recovered * first */ if (unlikely(di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL))) { ocfs2_cleanup_delete_inode(inode, 0); goto bail_unlock_inode; } /* Query the cluster. This will be the final decision made * before we go ahead and wipe the inode. */ status = ocfs2_query_inode_wipe(inode, di_bh, &wipe); if (!wipe || status < 0) { /* Error and remote inode busy both mean we won't be * removing the inode, so they take almost the same * path. */ if (status < 0) mlog_errno(status); /* Someone in the cluster has disallowed a wipe of * this inode, or it was never completely * orphaned. Write out the pages and exit now. */ ocfs2_cleanup_delete_inode(inode, 1); goto bail_unlock_inode; } ocfs2_cleanup_delete_inode(inode, 0); status = ocfs2_wipe_inode(inode, di_bh); if (status < 0) { if (status != -EDEADLK) mlog_errno(status); goto bail_unlock_inode; } /* * Mark the inode as successfully deleted. * * This is important for ocfs2_clear_inode() as it will check * this flag and skip any checkpointing work * * ocfs2_stuff_meta_lvb() also uses this flag to invalidate * the LVB for other nodes. */ OCFS2_I(inode)->ip_flags |= OCFS2_INODE_DELETED; bail_unlock_inode: ocfs2_inode_unlock(inode, 1); brelse(di_bh); bail_unlock_nfs_sync: ocfs2_nfs_sync_unlock(OCFS2_SB(inode->i_sb), 0); bail_unblock: ocfs2_unblock_signals(&oldset); bail: return; }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh22962.40%538.46%
wengang wangwengang wang5715.53%17.69%
joseph qijoseph qi4512.26%17.69%
tao matao ma195.18%215.38%
jan karajan kara143.81%215.38%
joel beckerjoel becker20.54%17.69%
al viroal viro10.27%17.69%
Total367100.00%13100.00%


static void ocfs2_clear_inode(struct inode *inode) { int status; struct ocfs2_inode_info *oi = OCFS2_I(inode); struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); clear_inode(inode); trace_ocfs2_clear_inode((unsigned long long)oi->ip_blkno, inode->i_nlink); mlog_bug_on_msg(OCFS2_SB(inode->i_sb) == NULL, "Inode=%lu\n", inode->i_ino); dquot_drop(inode); /* To preven remote deletes we hold open lock before, now it * is time to unlock PR and EX open locks. */ ocfs2_open_unlock(inode); /* Do these before all the other work so that we don't bounce * the downconvert thread while waiting to destroy the locks. */ ocfs2_mark_lockres_freeing(osb, &oi->ip_rw_lockres); ocfs2_mark_lockres_freeing(osb, &oi->ip_inode_lockres); ocfs2_mark_lockres_freeing(osb, &oi->ip_open_lockres); ocfs2_resv_discard(&OCFS2_SB(inode->i_sb)->osb_la_resmap, &oi->ip_la_data_resv); ocfs2_resv_init_once(&oi->ip_la_data_resv); /* We very well may get a clear_inode before all an inodes * metadata has hit disk. Of course, we can't drop any cluster * locks until the journal has finished with it. The only * exception here are successfully wiped inodes - their * metadata can now be considered to be part of the system * inodes from which it came. */ if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED)) ocfs2_checkpoint_inode(inode); mlog_bug_on_msg(!list_empty(&oi->ip_io_markers), "Clear inode of %llu, inode has io markers\n", (unsigned long long)oi->ip_blkno); mlog_bug_on_msg(!list_empty(&oi->ip_unwritten_list), "Clear inode of %llu, inode has unwritten extents\n", (unsigned long long)oi->ip_blkno); ocfs2_extent_map_trunc(inode, 0); status = ocfs2_drop_inode_locks(inode); if (status < 0) mlog_errno(status); ocfs2_lock_res_free(&oi->ip_rw_lockres); ocfs2_lock_res_free(&oi->ip_inode_lockres); ocfs2_lock_res_free(&oi->ip_open_lockres); ocfs2_metadata_cache_exit(INODE_CACHE(inode)); mlog_bug_on_msg(INODE_CACHE(inode)->ci_num_cached, "Clear inode of %llu, inode has %u cache items\n", (unsigned long long)oi->ip_blkno, INODE_CACHE(inode)->ci_num_cached); mlog_bug_on_msg(!(INODE_CACHE(inode)->ci_flags & OCFS2_CACHE_FL_INLINE), "Clear inode of %llu, inode has a bad flag\n", (unsigned long long)oi->ip_blkno); mlog_bug_on_msg(spin_is_locked(&oi->ip_lock), "Clear inode of %llu, inode is locked\n", (unsigned long long)oi->ip_blkno); mlog_bug_on_msg(!mutex_trylock(&oi->ip_io_mutex), "Clear inode of %llu, io_mutex is locked\n", (unsigned long long)oi->ip_blkno); mutex_unlock(&oi->ip_io_mutex); /* * down_trylock() returns 0, down_write_trylock() returns 1 * kernel 1, world 0 */ mlog_bug_on_msg(!down_write_trylock(&oi->ip_alloc_sem), "Clear inode of %llu, alloc_sem is locked\n", (unsigned long long)oi->ip_blkno); up_write(&oi->ip_alloc_sem); mlog_bug_on_msg(oi->ip_open_count, "Clear inode of %llu has open count %d\n", (unsigned long long)oi->ip_blkno, oi->ip_open_count); /* Clear all other flags. */ oi->ip_flags = 0; oi->ip_dir_start_lookup = 0; oi->ip_blkno = 0ULL; /* * ip_jinode is used to track txns against this inode. We ensure that * the journal is flushed before journal shutdown. Thus it is safe to * have inodes get cleaned up after journal shutdown. */ jbd2_journal_release_jbd_inode(OCFS2_SB(inode->i_sb)->journal->j_journal, &oi->ip_jinode); }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh36377.90%735.00%
joel beckerjoel becker388.15%420.00%
ryan dingryan ding234.94%15.00%
jan karajan kara194.08%210.00%
tiger yangtiger yang112.36%15.00%
christoph hellwigchristoph hellwig51.07%210.00%
al viroal viro40.86%15.00%
tao matao ma20.43%15.00%
sunil mushransunil mushran10.21%15.00%
Total466100.00%20100.00%


void ocfs2_evict_inode(struct inode *inode) { if (!inode->i_nlink || (OCFS2_I(inode)->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)) { ocfs2_delete_inode(inode); } else { truncate_inode_pages_final(&inode->i_data); } ocfs2_clear_inode(inode); }

Contributors

PersonTokensPropCommitsCommitProp
al viroal viro5098.04%150.00%
johannes weinerjohannes weiner11.96%150.00%
Total51100.00%2100.00%

/* Called under inode_lock, with no more references on the * struct inode, so it's safe here to check the flags field * and to manipulate i_nlink without any other locks. */
int ocfs2_drop_inode(struct inode *inode) { struct ocfs2_inode_info *oi = OCFS2_I(inode); trace_ocfs2_drop_inode((unsigned long long)oi->ip_blkno, inode->i_nlink, oi->ip_flags); assert_spin_locked(&inode->i_lock); inode->i_state |= I_WILL_FREE; spin_unlock(&inode->i_lock); write_inode_now(inode, 1); spin_lock(&inode->i_lock); WARN_ON(inode->i_state & I_NEW); inode->i_state &= ~I_WILL_FREE; return 1; }

Contributors

PersonTokensPropCommitsCommitProp
joyce xuejoyce xue4647.92%120.00%
mark fashehmark fasheh4546.88%240.00%
al viroal viro44.17%120.00%
tao matao ma11.04%120.00%
Total96100.00%5100.00%

/* * This is called from our getattr. */
int ocfs2_inode_revalidate(struct dentry *dentry) { struct inode *inode = d_inode(dentry); int status = 0; trace_ocfs2_inode_revalidate(inode, inode ? (unsigned long long)OCFS2_I(inode)->ip_blkno : 0ULL, inode ? (unsigned long long)OCFS2_I(inode)->ip_flags : 0); if (!inode) { status = -ENOENT; goto bail; } spin_lock(&OCFS2_I(inode)->ip_lock); if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) { spin_unlock(&OCFS2_I(inode)->ip_lock); status = -ENOENT; goto bail; } spin_unlock(&OCFS2_I(inode)->ip_lock); /* Let ocfs2_inode_lock do the work of updating our struct * inode for us. */ status = ocfs2_inode_lock(inode, NULL, 0); if (status < 0) { if (status != -ENOENT) mlog_errno(status); goto bail; } ocfs2_inode_unlock(inode, 0); bail: return status; }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh15888.76%360.00%
tao matao ma179.55%120.00%
david howellsdavid howells31.69%120.00%
Total178100.00%5100.00%

/* * Updates a disk inode from a * struct inode. * Only takes ip_lock. */
int ocfs2_mark_inode_dirty(handle_t *handle, struct inode *inode, struct buffer_head *bh) { int status; struct ocfs2_dinode *fe = (struct ocfs2_dinode *) bh->b_data; trace_ocfs2_mark_inode_dirty((unsigned long long)OCFS2_I(inode)->ip_blkno); status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), bh, OCFS2_JOURNAL_ACCESS_WRITE); if (status < 0) { mlog_errno(status); goto leave; } spin_lock(&OCFS2_I(inode)->ip_lock); fe->i_clusters = cpu_to_le32(OCFS2_I(inode)->ip_clusters); ocfs2_get_inode_flags(OCFS2_I(inode)); fe->i_attr = cpu_to_le32(OCFS2_I(inode)->ip_attr); fe->i_dyn_features = cpu_to_le16(OCFS2_I(inode)->ip_dyn_features); spin_unlock(&OCFS2_I(inode)->ip_lock); fe->i_size = cpu_to_le64(i_size_read(inode)); ocfs2_set_links_count(fe, inode->i_nlink); fe->i_uid = cpu_to_le32(i_uid_read(inode)); fe->i_gid = cpu_to_le32(i_gid_read(inode)); fe->i_mode = cpu_to_le16(inode->i_mode); fe->i_atime = cpu_to_le64(inode->i_atime.tv_sec); fe->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); fe->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); fe->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); ocfs2_journal_dirty(handle, bh); ocfs2_update_inode_fsync_trans(handle, inode, 1); leave: return status; }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh26886.45%541.67%
herbert poetzlherbert poetzl144.52%18.33%
darrick j. wongdarrick j. wong92.90%18.33%
jan karajan kara82.58%18.33%
eric w. biedermaneric w. biederman61.94%18.33%
joel beckerjoel becker41.29%216.67%
tao matao ma10.32%18.33%
Total310100.00%12100.00%

/* * * Updates a struct inode from a disk inode. * does no i/o, only takes ip_lock. */
void ocfs2_refresh_inode(struct inode *inode, struct ocfs2_dinode *fe) { spin_lock(&OCFS2_I(inode)->ip_lock); OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr); OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features); ocfs2_set_inode_flags(inode); i_size_write(inode, le64_to_cpu(fe->i_size)); set_nlink(inode, ocfs2_read_links_count(fe)); i_uid_write(inode, le32_to_cpu(fe->i_uid)); i_gid_write(inode, le32_to_cpu(fe->i_gid)); inode->i_mode = le16_to_cpu(fe->i_mode); if (S_ISLNK(inode->i_mode) && le32_to_cpu(fe->i_clusters) == 0) inode->i_blocks = 0; else inode->i_blocks = ocfs2_inode_sector_count(inode); inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime); inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec); inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime); inode->i_mtime.tv_nsec = le32_to_cpu(fe->i_mtime_nsec); inode->i_ctime.tv_sec = le64_to_cpu(fe->i_ctime); inode->i_ctime.tv_nsec = le32_to_cpu(fe->i_ctime_nsec); spin_unlock(&OCFS2_I(inode)->ip_lock); }

Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh22287.75%457.14%
herbert poetzlherbert poetzl197.51%114.29%
eric w. biedermaneric w. biederman83.16%114.29%
miklos szeredimiklos szeredi41.58%114.29%
Total253100.00%7100.00%


int ocfs2_validate_inode_block(struct super_block *sb, struct buffer_head *bh) { int rc; struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; trace_ocfs2_validate_inode_block((unsigned long long)bh->b_blocknr); BUG_ON(!buffer_uptodate(bh)); /* * If the ecc fails, we return the error but otherwise * leave the filesystem running. We know any error is * local to this block. */ rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check); if (rc) { mlog(ML_ERROR, "Checksum failed for dinode %llu\n", (unsigned long long)bh->b_blocknr); goto bail; } /* * Errors after here are fatal. */ rc = -EINVAL; if (!OCFS2_IS_VALID_DINODE(di)) { rc = ocfs2_error(sb, "Invalid dinode #%llu: signature = %.*s\n", (unsigned long long)bh->b_blocknr, 7, di->i_signature); goto bail; } if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) { rc = ocfs2_error(sb, "Invalid dinode #%llu: i_blkno is %llu\n", (unsigned long long)bh->b_blocknr, (unsigned long long)le64_to_cpu(di->i_blkno)); goto bail; } if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) { rc = ocfs2_error(sb, "Invalid dinode #%llu: OCFS2_VALID_FL not set\n", (unsigned long long)bh->b_blocknr); goto bail; } if (le32_to_cpu(di->i_fs_generation) != OCFS2_SB(sb)->fs_generation) { rc = ocfs2_error(sb, "Invalid dinode #%llu: fs_generation is %u\n", (unsigned long long)bh->b_blocknr, le32_to_cpu(di->i_fs_generation)); goto bail; } rc = 0; bail: return rc; }

Contributors

PersonTokensPropCommitsCommitProp
joel beckerjoel becker26996.76%466.67%
goldwyn rodriguesgoldwyn rodrigues82.88%116.67%
tao matao ma10.36%116.67%
Total278100.00%6100.00%


static int ocfs2_filecheck_validate_inode_block(struct super_block *sb, struct buffer_head *bh) { int rc = 0; struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; trace_ocfs2_filecheck_validate_inode_block( (unsigned long long)bh->b_blocknr); BUG_ON(!buffer_uptodate(bh)); /* * Call ocfs2_validate_meta_ecc() first since it has ecc repair * function, but we should not return error immediately when ecc * validation fails, because the reason is quite likely the invalid * inode number inputed. */ rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check); if (rc) { mlog(ML_ERROR, "Filecheck: checksum failed for dinode %llu\n", (unsigned long long)bh->b_blocknr); rc = -OCFS2_FILECHECK_ERR_BLOCKECC; } if (!OCFS2_IS_VALID_DINODE(di)) { mlog(ML_ERROR, "Filecheck: invalid dinode #%llu: signature = %.*s\n", (unsigned long long)bh->b_blocknr, 7, di->i_signature); rc = -OCFS2_FILECHECK_ERR_INVALIDINO; goto bail; } else if (rc) goto bail; if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) { mlog(ML_ERROR, "Filecheck: invalid dinode #%llu: i_blkno is %llu\n", (unsigned long long)bh->b_blocknr, (unsigned long long)le64_to_cpu(di->i_blkno)); rc = -OCFS2_FILECHECK_ERR_BLOCKNO; goto bail; } if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) { mlog(ML_ERROR, "Filecheck: invalid dinode #%llu: OCFS2_VALID_FL " "not set\n", (unsigned long long)bh->b_blocknr); rc = -OCFS2_FILECHECK_ERR_VALIDFLAG; goto bail; } if (le32_to_cpu(di->i_fs_generation) != OCFS2_SB(sb)->fs_generation) { mlog(ML_ERROR, "Filecheck: invalid dinode #%llu: fs_generation is %u\n", (unsigned long long)bh->b_blocknr, le32_to_cpu(di->i_fs_generation)); rc = -OCFS2_FILECHECK_ERR_GENERATION; goto bail; } bail: return rc; }

Contributors

PersonTokensPropCommitsCommitProp
gang hegang he294100.00%1100.00%
Total294100.00%1100.00%


static int ocfs2_filecheck_repair_inode_block(struct super_block *sb, struct buffer_head *bh) { int changed = 0; struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; if (!ocfs2_filecheck_validate_inode_block(sb, bh)) return 0; trace_ocfs2_filecheck_repair_inode_block( (unsigned long long)bh->b_blocknr); if (ocfs2_is_hard_readonly(OCFS2_SB(sb)) || ocfs2_is_soft_readonly(OCFS2_SB(sb))) { mlog(ML_ERROR, "Filecheck: cannot repair dinode #%llu " "on readonly filesystem\n", (unsigned long long)bh->b_blocknr); return -OCFS2_FILECHECK_ERR_READONLY; } if (buffer_jbd(bh)) { mlog(ML_ERROR, "Filecheck: cannot repair dinode #%llu, " "its buffer is in jbd\n", (unsigned long long)bh->b_blocknr); return -OCFS2_FILECHECK_ERR_INJBD; } if (!OCFS2_IS_VALID_DINODE(di)) { /* Cannot fix invalid inode block */ return -OCFS2_FILECHECK_ERR_INVALIDINO; } if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) { /* Cannot just add VALID_FL flag back as a fix, * need more things to check here. */ return -OCFS2_FILECHECK_ERR_VALIDFLAG; } if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) { di->i_blkno = cpu_to_le64(bh->b_blocknr); changed = 1; mlog(ML_ERROR, "Filecheck: reset dinode #%llu: i_blkno to %llu\n", (unsigned long long)bh->b_blocknr, (unsigned long long)le64_to_cpu(di->i_blkno)); } if (le32_to_cpu(di->i_fs_generation) != OCFS2_SB(sb)->fs_generation) { di->i_fs_generation = cpu_to_le32(OCFS2_SB(sb)->fs_generation); changed = 1; mlog(ML_ERROR, "Filecheck: reset dinode #%llu: fs_generation to %u\n", (unsigned long long)bh->b_blocknr, le32_to_cpu(di->i_fs_generation)); } if (changed || ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check)) { ocfs2_compute_meta_ecc(sb, bh->b_data, &di->i_check); mark_buffer_dirty(bh); mlog(ML_ERROR, "Filecheck: reset dinode #%llu: compute meta ecc\n", (unsigned long long)bh->b_blocknr); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
gang hegang he342100.00%1100.00%
Total342100.00%1100.00%


static int ocfs2_filecheck_read_inode_block_full(struct inode *inode, struct buffer_head **bh, int flags, int type) { int rc; struct buffer_head *tmp = *bh; if (!type) /* Check inode block */ rc = ocfs2_read_blocks(INODE_CACHE(inode), OCFS2_I(inode)->ip_blkno, 1, &tmp, flags, ocfs2_filecheck_validate_inode_block); else /* Repair inode block */ rc = ocfs2_read_blocks(INODE_CACHE(inode), OCFS2_I(inode)->ip_blkno, 1, &tmp, flags, ocfs2_filecheck_repair_inode_block); /* If ocfs2_read_blocks() got us a new bh, pass it up. */ if (!rc && !*bh) *bh = tmp; return rc; }

Contributors

PersonTokensPropCommitsCommitProp
gang hegang he112100.00%1100.00%
Total112100.00%1100.00%


int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh, int flags) { int rc; struct buffer_head *tmp = *bh; rc = ocfs2_read_blocks(INODE_CACHE(inode), OCFS2_I(inode)->ip_blkno, 1, &tmp, flags, ocfs2_validate_inode_block); /* If ocfs2_read_blocks() got us a new bh, pass it up. */ if (!rc && !*bh) *bh = tmp; return rc; }

Contributors

PersonTokensPropCommitsCommitProp
joel beckerjoel becker74100.00%3100.00%
Total74100.00%3100.00%


int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh) { return ocfs2_read_inode_block_full(inode, bh, 0); }

Contributors

PersonTokensPropCommitsCommitProp
joel beckerjoel becker26100.00%1100.00%
Total26100.00%1100.00%


static u64 ocfs2_inode_cache_owner(struct ocfs2_caching_info *ci) { struct ocfs2_inode_info *oi = cache_info_to_inode(ci); return oi->ip_blkno; }

Contributors

PersonTokensPropCommitsCommitProp
joel beckerjoel becker26100.00%1100.00%
Total26100.00%1100.00%


static struct super_block *ocfs2_inode_cache_get_super(struct ocfs2_caching_info *ci) { struct ocfs2_inode_info *oi = cache_info_to_inode(ci); return oi->vfs_inode.i_sb; }

Contributors

PersonTokensPropCommitsCommitProp
joel beckerjoel becker30100.00%1100.00%
Total30100.00%1100.00%


static void ocfs2_inode_cache_lock(struct ocfs2_caching_info *ci) { struct ocfs2_inode_info *oi = cache_info_to_inode(ci); spin_lock(&oi->ip_lock); }

Contributors

PersonTokensPropCommitsCommitProp
joel beckerjoel becker29100.00%1100.00%
Total29100.00%1100.00%


static void ocfs2_inode_cache_unlock(struct ocfs2_caching_info *ci) { struct ocfs2_inode_info *oi = cache_info_to_inode(ci); spin_unlock(&oi->ip_lock); }

Contributors

PersonTokensPropCommitsCommitProp
joel beckerjoel becker29100.00%1100.00%
Total29100.00%1100.00%


static void ocfs2_inode_cache_io_lock(struct ocfs2_caching_info *ci) { struct ocfs2_inode_info *oi = cache_info_to_inode(ci); mutex_lock(&oi->ip_io_mutex); }

Contributors

PersonTokensPropCommitsCommitProp
joel beckerjoel becker29100.00%1100.00%
Total29100.00%1100.00%


static void ocfs2_inode_cache_io_unlock(struct ocfs2_caching_info *ci) { struct ocfs2_inode_info *oi = cache_info_to_inode(ci); mutex_unlock(&oi->ip_io_mutex); }

Contributors

PersonTokensPropCommitsCommitProp
joel beckerjoel becker29100.00%1100.00%
Total29100.00%1100.00%

const struct ocfs2_caching_operations ocfs2_inode_caching_ops = { .co_owner = ocfs2_inode_cache_owner, .co_get_super = ocfs2_inode_cache_get_super, .co_cache_lock = ocfs2_inode_cache_lock, .co_cache_unlock = ocfs2_inode_cache_unlock, .co_io_lock = ocfs2_inode_cache_io_lock, .co_io_unlock = ocfs2_inode_cache_io_unlock, };

Overall Contributors

PersonTokensPropCommitsCommitProp
mark fashehmark fasheh408656.78%2224.72%
gang hegang he98213.65%11.12%
joel beckerjoel becker7099.85%1516.85%
jan karajan kara2924.06%1011.24%
tao matao ma2463.42%55.62%
tiger yangtiger yang1552.15%22.25%
herbert poetzlherbert poetzl1361.89%11.12%
wengang wangwengang wang1181.64%11.12%
darrick j. wongdarrick j. wong1101.53%11.12%
al viroal viro841.17%66.74%
li dongyangli dongyang580.81%11.12%
joseph qijoseph qi490.68%33.37%
joyce xuejoyce xue460.64%11.12%
ryan dingryan ding230.32%11.12%
eric w. biedermaneric w. biederman220.31%11.12%
tristan yetristan ye180.25%11.12%
goldwyn rodriguesgoldwyn rodrigues170.24%22.25%
sunil mushransunil mushran150.21%44.49%
miklos szeredimiklos szeredi80.11%11.12%
christoph hellwigchristoph hellwig60.08%33.37%
dan carpenterdan carpenter40.06%11.12%
david howellsdavid howells30.04%11.12%
marcin slusarzmarcin slusarz30.04%11.12%
johannes weinerjohannes weiner20.03%11.12%
deepa dinamanideepa dinamani20.03%11.12%
lucas de marchilucas de marchi10.01%11.12%
uwe kleine-koeniguwe kleine-koenig10.01%11.12%
Total7196100.00%89100.00%
Directory: fs/ocfs2
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