diff options
| author | Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> | 2013-06-09 01:25:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-20 07:34:21 -0800 |
| commit | 0e755a93423dd7f32112e50148f953245051095d (patch) | |
| tree | a1d3653415533cf5c39a26f7c4e38abcb2dfdbb9 | |
| parent | 693b680339ee4641161b4a78a51ee26df50c0f6c (diff) | |
hpfs: fix warnings when the filesystem fills up
commit bbd465df73f0d8ba41b8a0732766a243d0f5b356 upstream.
This patch fixes warnings due to missing lock on write error path.
WARNING: at fs/hpfs/hpfs_fn.h:353 hpfs_truncate+0x75/0x80 [hpfs]()
Hardware name: empty
Pid: 26563, comm: dd Tainted: P O 3.9.4 #12
Call Trace:
hpfs_truncate+0x75/0x80 [hpfs]
hpfs_write_begin+0x84/0x90 [hpfs]
_hpfs_bmap+0x10/0x10 [hpfs]
generic_file_buffered_write+0x121/0x2c0
__generic_file_aio_write+0x1c7/0x3f0
generic_file_aio_write+0x7c/0x100
do_sync_write+0x98/0xd0
hpfs_file_write+0xd/0x50 [hpfs]
vfs_write+0xa2/0x160
sys_write+0x51/0xa0
page_fault+0x22/0x30
system_call_fastpath+0x1a/0x1f
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/hpfs/file.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c index 89d2a5803ae..5ecfffe2533 100644 --- a/fs/hpfs/file.c +++ b/fs/hpfs/file.c @@ -116,9 +116,12 @@ static int hpfs_write_begin(struct file *file, struct address_space *mapping, hpfs_get_block, &hpfs_i(mapping->host)->mmu_private); if (unlikely(ret)) { - loff_t isize = mapping->host->i_size; + loff_t isize; + hpfs_lock(mapping->host->i_sb); + isize = mapping->host->i_size; if (pos + len > isize) vmtruncate(mapping->host, isize); + hpfs_unlock(mapping->host->i_sb); } return ret; |