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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-26 10:34:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-26 10:34:24 -0800 |
| commit | 7dac5cb1bc8c4bc420f0cafd9c42d693eadfdd7e (patch) | |
| tree | d9577362d46069bf69c956577c0cd2444d0b22b2 | |
| parent | b24e2bdde4af656bb0679a101265ebb8f8735d3c (diff) | |
| parent | e57cf21e9787c081db4db6afa02e6e70112ee410 (diff) | |
| download | linux-7dac5cb1bc8c4bc420f0cafd9c42d693eadfdd7e.tar.bz2 | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fix from Chris Mason:
"I'm still testing more fixes, but I wanted to get out the fix for the
btrfs raid5/6 memory corruption I mentioned in my merge window pull"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix allocation size calculations in alloc_btrfs_bio
| -rw-r--r-- | fs/btrfs/volumes.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index cd4d1315aaa9..8222f6f74147 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -4903,10 +4903,17 @@ static void sort_parity_stripes(struct btrfs_bio *bbio, int num_stripes) static struct btrfs_bio *alloc_btrfs_bio(int total_stripes, int real_stripes) { struct btrfs_bio *bbio = kzalloc( + /* the size of the btrfs_bio */ sizeof(struct btrfs_bio) + + /* plus the variable array for the stripes */ sizeof(struct btrfs_bio_stripe) * (total_stripes) + + /* plus the variable array for the tgt dev */ sizeof(int) * (real_stripes) + - sizeof(u64) * (real_stripes), + /* + * plus the raid_map, which includes both the tgt dev + * and the stripes + */ + sizeof(u64) * (total_stripes), GFP_NOFS); if (!bbio) return NULL; |