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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-14 08:56:27 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-14 08:56:27 +0900 |
| commit | 2821fe6b00a1e902fd399bb4b7e40bc3041f4d44 (patch) | |
| tree | ec95a7f7e79c26abd48c82c238cdec5ac8a74d60 /drivers | |
| parent | f47671e2d861a2093179cd64dda22016664b2015 (diff) | |
| parent | 441a9d0e1e827e6433e3487145fbb0c5513301e2 (diff) | |
| download | linux-2821fe6b00a1e902fd399bb4b7e40bc3041f4d44.tar.bz2 | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS fixes from Al Viro:
"Several fixes, mostly for regressions in the last pile. Howeover,
prepend_path() forgetting to reininitalize dentry/vfsmount is in 3.12
as well and qib_fs had been leaking all along..."
The unpaired RCU lock issue was also independently reported by Dave
Jones with his fuzzer tool..
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
qib_fs: fix (some) dcache abuses
prepend_path() needs to reinitialize dentry/vfsmount/mnt on restarts
fix unpaired rcu lock in prepend_path()
locks: missing unlock on error in generic_add_lease()
aio: checking for NULL instead of IS_ERR
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_fs.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c index f247fc6e6182..c61e2a92b3c1 100644 --- a/drivers/infiniband/hw/qib/qib_fs.c +++ b/drivers/infiniband/hw/qib/qib_fs.c @@ -456,13 +456,13 @@ static int remove_file(struct dentry *parent, char *name) spin_lock(&tmp->d_lock); if (!(d_unhashed(tmp) && tmp->d_inode)) { - dget_dlock(tmp); __d_drop(tmp); spin_unlock(&tmp->d_lock); simple_unlink(parent->d_inode, tmp); } else { spin_unlock(&tmp->d_lock); } + dput(tmp); ret = 0; bail: @@ -491,6 +491,7 @@ static int remove_device_files(struct super_block *sb, goto bail; } + mutex_lock(&dir->d_inode->i_mutex); remove_file(dir, "counters"); remove_file(dir, "counter_names"); remove_file(dir, "portcounter_names"); @@ -505,8 +506,10 @@ static int remove_device_files(struct super_block *sb, } } remove_file(dir, "flash"); - d_delete(dir); + mutex_unlock(&dir->d_inode->i_mutex); ret = simple_rmdir(root->d_inode, dir); + d_delete(dir); + dput(dir); bail: mutex_unlock(&root->d_inode->i_mutex); |