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authorLinus Torvalds <torvalds@linux-foundation.org>2009-07-13 16:39:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-13 16:39:25 -0700
commit1cf29683f4414296dc772a87caa207cab16c310c (patch)
tree90d05ba531c5ad48d8d171d5b78038a7df7728e7 /fs/ext4/ioctl.c
parent4a390e07fc53ce9dd615d7b788e9ecc73f87ad94 (diff)
parent96577c43827697ca1af5982fa256a34786d0c720 (diff)
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: jbd2: fix race between write_metadata_buffer and get_write_access ext4: Fix ext4_mb_initialize_context() to initialize all fields ext4: fix null handler of ioctls in no journal mode ext4: Fix buffer head reference leak in no-journal mode ext4: Move __ext4_journalled_writepage() to avoid forward declaration ext4: Fix mmap/truncate race when blocksize < pagesize && !nodellaoc ext4: Fix mmap/truncate race when blocksize < pagesize && delayed allocation ext4: Don't look at buffer_heads outside i_size. ext4: Fix goal inum check in the inode allocator ext4: fix no journal corruption with locale-gen ext4: Calculate required journal credits for inserting an extent properly ext4: Fix truncation of symlinks after failed write jbd2: Fix a race between checkpointing code and journal_get_write_access() ext4: Use rcu_barrier() on module unload. ext4: naturally align struct ext4_allocation_request ext4: mark several more functions in mballoc.c as noinline ext4: Fix potential reclaim deadlock when truncating partial block jbd2: Remove GFP_ATOMIC kmalloc from inside spinlock critical region ext4: Fix type warning on 64-bit platforms in tracing events header
Diffstat (limited to 'fs/ext4/ioctl.c')
-rw-r--r--fs/ext4/ioctl.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 24a6abb2aef..7050a9cd04a 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -191,7 +191,7 @@ setversion_out:
case EXT4_IOC_GROUP_EXTEND: {
ext4_fsblk_t n_blocks_count;
struct super_block *sb = inode->i_sb;
- int err, err2;
+ int err, err2=0;
if (!capable(CAP_SYS_RESOURCE))
return -EPERM;
@@ -204,9 +204,11 @@ setversion_out:
return err;
err = ext4_group_extend(sb, EXT4_SB(sb)->s_es, n_blocks_count);
- jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
- err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
- jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
+ if (EXT4_SB(sb)->s_journal) {
+ jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
+ err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
+ jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
+ }
if (err == 0)
err = err2;
mnt_drop_write(filp->f_path.mnt);
@@ -251,7 +253,7 @@ setversion_out:
case EXT4_IOC_GROUP_ADD: {
struct ext4_new_group_data input;
struct super_block *sb = inode->i_sb;
- int err, err2;
+ int err, err2=0;
if (!capable(CAP_SYS_RESOURCE))
return -EPERM;
@@ -265,9 +267,11 @@ setversion_out:
return err;
err = ext4_group_add(sb, &input);
- jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
- err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
- jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
+ if (EXT4_SB(sb)->s_journal) {
+ jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
+ err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
+ jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
+ }
if (err == 0)
err = err2;
mnt_drop_write(filp->f_path.mnt);