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wrappers for ->i_mutex access

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parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2016-01-22 15:40:57 -05:00
parent 57b8f112cf
commit 5955102c99
177 changed files with 908 additions and 883 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
fs/ocfs2/alloc.c
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@@ -5719,7 +5719,7 @@ int ocfs2_remove_btree_range(struct inode *inode,
goto bail;
}
mutex_lock(&tl_inode->i_mutex);
inode_lock(tl_inode);
if (ocfs2_truncate_log_needs_flush(osb)) {
ret = __ocfs2_flush_truncate_log(osb);
@@ -5776,7 +5776,7 @@ int ocfs2_remove_btree_range(struct inode *inode,
out_commit:
ocfs2_commit_trans(osb, handle);
out:
mutex_unlock(&tl_inode->i_mutex);
inode_unlock(tl_inode);
bail:
if (meta_ac)
ocfs2_free_alloc_context(meta_ac);
@@ -5832,7 +5832,7 @@ int ocfs2_truncate_log_append(struct ocfs2_super *osb,
struct ocfs2_dinode *di;
struct ocfs2_truncate_log *tl;
BUG_ON(mutex_trylock(&tl_inode->i_mutex));
BUG_ON(inode_trylock(tl_inode));
start_cluster = ocfs2_blocks_to_clusters(osb->sb, start_blk);
@@ -5980,7 +5980,7 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
struct ocfs2_dinode *di;
struct ocfs2_truncate_log *tl;
BUG_ON(mutex_trylock(&tl_inode->i_mutex));
BUG_ON(inode_trylock(tl_inode));
di = (struct ocfs2_dinode *) tl_bh->b_data;
@@ -6008,7 +6008,7 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
goto out;
}
mutex_lock(&data_alloc_inode->i_mutex);
inode_lock(data_alloc_inode);
status = ocfs2_inode_lock(data_alloc_inode, &data_alloc_bh, 1);
if (status < 0) {
@@ -6035,7 +6035,7 @@ out_unlock:
ocfs2_inode_unlock(data_alloc_inode, 1);
out_mutex:
mutex_unlock(&data_alloc_inode->i_mutex);
inode_unlock(data_alloc_inode);
iput(data_alloc_inode);
out:
@@ -6047,9 +6047,9 @@ int ocfs2_flush_truncate_log(struct ocfs2_super *osb)
int status;
struct inode *tl_inode = osb->osb_tl_inode;
mutex_lock(&tl_inode->i_mutex);
inode_lock(tl_inode);
status = __ocfs2_flush_truncate_log(osb);
mutex_unlock(&tl_inode->i_mutex);
inode_unlock(tl_inode);
return status;
}
@@ -6208,7 +6208,7 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb,
(unsigned long long)le64_to_cpu(tl_copy->i_blkno),
num_recs);
mutex_lock(&tl_inode->i_mutex);
inode_lock(tl_inode);
for(i = 0; i < num_recs; i++) {
if (ocfs2_truncate_log_needs_flush(osb)) {
status = __ocfs2_flush_truncate_log(osb);
@@ -6239,7 +6239,7 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb,
}
bail_up:
mutex_unlock(&tl_inode->i_mutex);
inode_unlock(tl_inode);
return status;
}
@@ -6346,7 +6346,7 @@ static int ocfs2_free_cached_blocks(struct ocfs2_super *osb,
goto out;
}
mutex_lock(&inode->i_mutex);
inode_lock(inode);
ret = ocfs2_inode_lock(inode, &di_bh, 1);
if (ret) {
@@ -6395,7 +6395,7 @@ out_unlock:
ocfs2_inode_unlock(inode, 1);
brelse(di_bh);
out_mutex:
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
iput(inode);
out:
while(head) {
@@ -6439,7 +6439,7 @@ static int ocfs2_free_cached_clusters(struct ocfs2_super *osb,
handle_t *handle;
int ret = 0;
mutex_lock(&tl_inode->i_mutex);
inode_lock(tl_inode);
while (head) {
if (ocfs2_truncate_log_needs_flush(osb)) {
@@ -6471,7 +6471,7 @@ static int ocfs2_free_cached_clusters(struct ocfs2_super *osb,
}
}
mutex_unlock(&tl_inode->i_mutex);
inode_unlock(tl_inode);
while (head) {
/* Premature exit may have left some dangling items. */
@@ -7355,7 +7355,7 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
goto out;
}
mutex_lock(&main_bm_inode->i_mutex);
inode_lock(main_bm_inode);
ret = ocfs2_inode_lock(main_bm_inode, &main_bm_bh, 0);
if (ret < 0) {
@@ -7422,7 +7422,7 @@ out_unlock:
ocfs2_inode_unlock(main_bm_inode, 0);
brelse(main_bm_bh);
out_mutex:
mutex_unlock(&main_bm_inode->i_mutex);
inode_unlock(main_bm_inode);
iput(main_bm_inode);
out:
return ret;