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btrfs: drop gfp_t from lock_extent

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lock_extent and unlock_extent are always called with GFP_NOFS, drop the
 argument and use GFP_NOFS consistently.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
This commit is contained in:
Jeff Mahoney
2012-03-01 14:57:19 +01:00
committed by David Sterba
parent 143bede527
commit d0082371cf
9 changed files with 63 additions and 76 deletions
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41
fs/btrfs/extent_io.c
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@@ -1171,42 +1171,40 @@ static int clear_extent_uptodate(struct extent_io_tree *tree, u64 start,
* us if waiting is desired.
*/
int lock_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
int bits, struct extent_state **cached_state, gfp_t mask)
int bits, struct extent_state **cached_state)
{
int err;
u64 failed_start;
while (1) {
err = set_extent_bit(tree, start, end, EXTENT_LOCKED | bits,
EXTENT_LOCKED, &failed_start,
cached_state, mask);
if (err == -EEXIST && (mask & __GFP_WAIT)) {
cached_state, GFP_NOFS);
if (err == -EEXIST) {
wait_extent_bit(tree, failed_start, end, EXTENT_LOCKED);
start = failed_start;
} else {
} else
break;
}
WARN_ON(start > end);
}
return err;
}
int lock_extent(struct extent_io_tree *tree, u64 start, u64 end, gfp_t mask)
int lock_extent(struct extent_io_tree *tree, u64 start, u64 end)
{
return lock_extent_bits(tree, start, end, 0, NULL, mask);
return lock_extent_bits(tree, start, end, 0, NULL);
}
int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end,
gfp_t mask)
int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end)
{
int err;
u64 failed_start;
err = set_extent_bit(tree, start, end, EXTENT_LOCKED, EXTENT_LOCKED,
&failed_start, NULL, mask);
&failed_start, NULL, GFP_NOFS);
if (err == -EEXIST) {
if (failed_start > start)
clear_extent_bit(tree, start, failed_start - 1,
EXTENT_LOCKED, 1, 0, NULL, mask);
EXTENT_LOCKED, 1, 0, NULL, GFP_NOFS);
return 0;
}
return 1;
@@ -1219,10 +1217,10 @@ int unlock_extent_cached(struct extent_io_tree *tree, u64 start, u64 end,
mask);
}
int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end, gfp_t mask)
int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end)
{
return clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, NULL,
mask);
GFP_NOFS);
}
/*
@@ -1518,8 +1516,7 @@ again:
BUG_ON(ret);
/* step three, lock the state bits for the whole range */
lock_extent_bits(tree, delalloc_start, delalloc_end,
0, &cached_state, GFP_NOFS);
lock_extent_bits(tree, delalloc_start, delalloc_end, 0, &cached_state);
/* then test to make sure it is all still delalloc */
ret = test_range_bit(tree, delalloc_start, delalloc_end,
@@ -2557,11 +2554,11 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
end = page_end;
while (1) {
lock_extent(tree, start, end, GFP_NOFS);
lock_extent(tree, start, end);
ordered = btrfs_lookup_ordered_extent(inode, start);
if (!ordered)
break;
unlock_extent(tree, start, end, GFP_NOFS);
unlock_extent(tree, start, end);
btrfs_start_ordered_extent(inode, ordered, 1);
btrfs_put_ordered_extent(ordered);
}
@@ -2598,7 +2595,7 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
end - cur + 1, 0);
if (IS_ERR_OR_NULL(em)) {
SetPageError(page);
unlock_extent(tree, cur, end, GFP_NOFS);
unlock_extent(tree, cur, end);
break;
}
extent_offset = cur - em->start;
@@ -2650,7 +2647,7 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
if (test_range_bit(tree, cur, cur_end,
EXTENT_UPTODATE, 1, NULL)) {
check_page_uptodate(tree, page);
unlock_extent(tree, cur, cur + iosize - 1, GFP_NOFS);
unlock_extent(tree, cur, cur + iosize - 1);
cur = cur + iosize;
pg_offset += iosize;
continue;
@@ -2660,7 +2657,7 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
*/
if (block_start == EXTENT_MAP_INLINE) {
SetPageError(page);
unlock_extent(tree, cur, cur + iosize - 1, GFP_NOFS);
unlock_extent(tree, cur, cur + iosize - 1);
cur = cur + iosize;
pg_offset += iosize;
continue;
@@ -3274,7 +3271,7 @@ int extent_invalidatepage(struct extent_io_tree *tree,
if (start > end)
return 0;
lock_extent_bits(tree, start, end, 0, &cached_state, GFP_NOFS);
lock_extent_bits(tree, start, end, 0, &cached_state);
wait_on_page_writeback(page);
clear_extent_bit(tree, start, end,
EXTENT_LOCKED | EXTENT_DIRTY | EXTENT_DELALLOC |
@@ -3488,7 +3485,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
}
lock_extent_bits(&BTRFS_I(inode)->io_tree, start, start + len, 0,
&cached_state, GFP_NOFS);
&cached_state);
em = get_extent_skip_holes(inode, start, last_for_get_extent,
get_extent);