dlan17/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

wrappers for ->i_mutex access

Browse Source 
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
fs/fuse/dir.c
+5 -5
View File
@@ -944,7 +944,7 @@ int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
if (!parent)
return -ENOENT;
mutex_lock(&parent->i_mutex);
inode_lock(parent);
if (!S_ISDIR(parent->i_mode))
goto unlock;
@@ -962,7 +962,7 @@ int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
fuse_invalidate_entry(entry);
if (child_nodeid != 0 && d_really_is_positive(entry)) {
mutex_lock(&d_inode(entry)->i_mutex);
inode_lock(d_inode(entry));
if (get_node_id(d_inode(entry)) != child_nodeid) {
err = -ENOENT;
goto badentry;
@@ -983,7 +983,7 @@ int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
clear_nlink(d_inode(entry));
err = 0;
badentry:
mutex_unlock(&d_inode(entry)->i_mutex);
inode_unlock(d_inode(entry));
if (!err)
d_delete(entry);
} else {
@@ -992,7 +992,7 @@ int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
dput(entry);
unlock:
mutex_unlock(&parent->i_mutex);
inode_unlock(parent);
iput(parent);
return err;
}
@@ -1504,7 +1504,7 @@ 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(!mutex_is_locked(&inode->i_mutex));
BUG_ON(!inode_is_locked(inode));
spin_lock(&fc->lock);
BUG_ON(fi->writectr < 0);