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authorFengguang Wu <wfg@mail.ustc.edu.cn>2007-10-16 01:24:33 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:42:52 -0700
commitf4e6b498d6e06742d72706ef50593a9c4dd72214 (patch)
tree74a573302b2ea086c0d21907175be604f110f5b1 /fs/ext4/dir.c
parent0bb7ba6b9c358c12084a3cbc6ac08c8d1e973937 (diff)
readahead: combine file_ra_state.prev_index/prev_offset into prev_pos
Combine the file_ra_state members unsigned long prev_index unsigned int prev_offset into loff_t prev_pos It is more consistent and better supports huge files. Thanks to Peter for the nice proposal! [akpm@linux-foundation.org: fix shift overflow] Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ext4/dir.c')
-rw-r--r--fs/ext4/dir.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 3ab01c04e00..e11890acfa2 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -142,7 +142,7 @@ static int ext4_readdir(struct file * filp,
sb->s_bdev->bd_inode->i_mapping,
&filp->f_ra, filp,
index, 1);
- filp->f_ra.prev_index = index;
+ filp->f_ra.prev_pos = (loff_t)index << PAGE_CACHE_SHIFT;
bh = ext4_bread(NULL, inode, blk, 0, &err);
}