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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-11 08:02:31 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-11 08:02:31 -0400 |
| commit | ac0c49396d5ed9a33f08ce661635ac1bff80bb4f (patch) | |
| tree | e2f066b931b133e94fde7e1157c57bef69a928e7 /fs/udf/file.c | |
| parent | eca9fdf32dd48976eab18d310acb0b8d4cc9bf26 (diff) | |
| parent | 6174c2eb8ecef271159bdcde460ce8af54d8f72f (diff) | |
| download | op-kernel-dev-ac0c49396d5ed9a33f08ce661635ac1bff80bb4f.zip op-kernel-dev-ac0c49396d5ed9a33f08ce661635ac1bff80bb4f.tar.gz | |
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF and quota updates from Jan Kara:
"A few UDF fixes and also a few patches which are preparing filesystems
for support of project quotas in VFS"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: Fix loading of special inodes
ocfs2: Back out change to use OCFS2_MAXQUOTAS in ocfs2_setattr()
udf: remove redundant sys_tz declaration
ocfs2: Don't use MAXQUOTAS value
reiserfs: Don't use MAXQUOTAS value
ext3: Don't use MAXQUOTAS value
udf: Fix race between write(2) and close(2)
Diffstat (limited to 'fs/udf/file.c')
| -rw-r--r-- | fs/udf/file.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/udf/file.c b/fs/udf/file.c index 86c6743..bb15771 100644 --- a/fs/udf/file.c +++ b/fs/udf/file.c @@ -223,11 +223,18 @@ out: static int udf_release_file(struct inode *inode, struct file *filp) { - if (filp->f_mode & FMODE_WRITE) { + if (filp->f_mode & FMODE_WRITE && + atomic_read(&inode->i_writecount) > 1) { + /* + * Grab i_mutex to avoid races with writes changing i_size + * while we are running. + */ + mutex_lock(&inode->i_mutex); down_write(&UDF_I(inode)->i_data_sem); udf_discard_prealloc(inode); udf_truncate_tail_extent(inode); up_write(&UDF_I(inode)->i_data_sem); + mutex_unlock(&inode->i_mutex); } return 0; } |
