diff options
| author | Jens Axboe <jens.axboe@oracle.com> | 2010-05-21 21:27:26 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2010-05-21 21:27:26 +0200 |
| commit | ee9a3607fb03e804ddf624544105f4e34260c380 (patch) | |
| tree | ce41b6e0fa10982a306f6c142a92dbf3c9961284 /fs/gfs2/aops.c | |
| parent | b492e95be0ae672922f4734acf3f5d35c30be948 (diff) | |
| parent | d515e86e639890b33a09390d062b0831664f04a2 (diff) | |
Merge branch 'master' into for-2.6.35
Conflicts:
fs/ext3/fsync.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/gfs2/aops.c')
| -rw-r--r-- | fs/gfs2/aops.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c index 0c1d0b82dcf1..a739a0a48067 100644 --- a/fs/gfs2/aops.c +++ b/fs/gfs2/aops.c @@ -418,6 +418,7 @@ static int gfs2_jdata_writepages(struct address_space *mapping, static int stuffed_readpage(struct gfs2_inode *ip, struct page *page) { struct buffer_head *dibh; + u64 dsize = i_size_read(&ip->i_inode); void *kaddr; int error; @@ -437,9 +438,10 @@ static int stuffed_readpage(struct gfs2_inode *ip, struct page *page) return error; kaddr = kmap_atomic(page, KM_USER0); - memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode), - ip->i_disksize); - memset(kaddr + ip->i_disksize, 0, PAGE_CACHE_SIZE - ip->i_disksize); + if (dsize > (dibh->b_size - sizeof(struct gfs2_dinode))) + dsize = (dibh->b_size - sizeof(struct gfs2_dinode)); + memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode), dsize); + memset(kaddr + dsize, 0, PAGE_CACHE_SIZE - dsize); kunmap_atomic(kaddr, KM_USER0); flush_dcache_page(page); brelse(dibh); |