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btrfs: drop gfp_t from lock_extent 

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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6
fs/btrfs/compression.c
View File

@ -496,7 +496,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
* sure they map to this compressed extent on disk.
*/
set_page_extent_mapped(page);
lock_extent(tree, last_offset, end, GFP_NOFS);
lock_extent(tree, last_offset, end);
read_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, last_offset,
PAGE_CACHE_SIZE);
@ -506,7 +506,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
(last_offset + PAGE_CACHE_SIZE > extent_map_end(em)) ||
(em->block_start >> 9) != cb->orig_bio->bi_sector) {
free_extent_map(em);
unlock_extent(tree, last_offset, end, GFP_NOFS);
unlock_extent(tree, last_offset, end);
unlock_page(page);
page_cache_release(page);
break;
@ -534,7 +534,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
nr_pages++;
page_cache_release(page);
} else {
unlock_extent(tree, last_offset, end, GFP_NOFS);
unlock_extent(tree, last_offset, end);
unlock_page(page);
page_cache_release(page);
break;

2
fs/btrfs/disk-io.c
View File

@ -332,7 +332,7 @@ static int verify_parent_transid(struct extent_io_tree *io_tree,
return 0;
lock_extent_bits(io_tree, eb->start, eb->start + eb->len - 1,
0, &cached_state, GFP_NOFS);
0, &cached_state);
if (extent_buffer_uptodate(io_tree, eb, cached_state) &&
btrfs_header_generation(eb) == parent_transid) {
ret = 0;

41
fs/btrfs/extent_io.c
View File

@ -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);

9
fs/btrfs/extent_io.h
View File

@ -182,14 +182,13 @@ int try_release_extent_buffer(struct extent_io_tree *tree, struct page *page);
int try_release_extent_state(struct extent_map_tree *map,
struct extent_io_tree *tree, struct page *page,
gfp_t mask);
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);
int lock_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
int bits, struct extent_state **cached, gfp_t mask);
int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end, gfp_t mask);
int bits, struct extent_state **cached);
int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end);
int unlock_extent_cached(struct extent_io_tree *tree, u64 start, u64 end,
struct extent_state **cached, gfp_t mask);
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 extent_read_full_page(struct extent_io_tree *tree, struct page *page,
get_extent_t *get_extent, int mirror_num);
int __init extent_io_init(void);

7
fs/btrfs/file.c
View File

@ -1105,8 +1105,7 @@ again:
if (start_pos < inode->i_size) {
struct btrfs_ordered_extent *ordered;
lock_extent_bits(&BTRFS_I(inode)->io_tree,
start_pos, last_pos - 1, 0, &cached_state,
GFP_NOFS);
start_pos, last_pos - 1, 0, &cached_state);
ordered = btrfs_lookup_first_ordered_extent(inode,
last_pos - 1);
if (ordered &&
@ -1638,7 +1637,7 @@ static long btrfs_fallocate(struct file *file, int mode,
* transaction
*/
lock_extent_bits(&BTRFS_I(inode)->io_tree, alloc_start,
locked_end, 0, &cached_state, GFP_NOFS);
locked_end, 0, &cached_state);
ordered = btrfs_lookup_first_ordered_extent(inode,
alloc_end - 1);
if (ordered &&
@ -1737,7 +1736,7 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int origin)
return -ENXIO;
lock_extent_bits(&BTRFS_I(inode)->io_tree, lockstart, lockend, 0,
&cached_state, GFP_NOFS);
&cached_state);
/*
* Delalloc is such a pain. If we have a hole and we have pending

2
fs/btrfs/free-space-cache.c
View File

@ -869,7 +869,7 @@ int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode,
io_ctl_prepare_pages(&io_ctl, inode, 0);
lock_extent_bits(&BTRFS_I(inode)->io_tree, 0, i_size_read(inode) - 1,
0, &cached_state, GFP_NOFS);
0, &cached_state);
node = rb_first(&ctl->free_space_offset);
if (!node && cluster) {

33
fs/btrfs/inode.c
View File

@ -597,7 +597,7 @@ retry:
lock_extent(io_tree, async_extent->start,
async_extent->start +
async_extent->ram_size - 1, GFP_NOFS);
async_extent->ram_size - 1);
/* allocate blocks */
ret = cow_file_range(inode, async_cow->locked_page,
@ -625,8 +625,7 @@ retry:
}
lock_extent(io_tree, async_extent->start,
async_extent->start + async_extent->ram_size - 1,
GFP_NOFS);
async_extent->start + async_extent->ram_size - 1);
trans = btrfs_join_transaction(root);
BUG_ON(IS_ERR(trans));
@ -649,7 +648,7 @@ retry:
async_extent->pages = NULL;
unlock_extent(io_tree, async_extent->start,
async_extent->start +
async_extent->ram_size - 1, GFP_NOFS);
async_extent->ram_size - 1);
goto retry;
}
@ -1574,7 +1573,7 @@ again:
page_end = page_offset(page) + PAGE_CACHE_SIZE - 1;
lock_extent_bits(&BTRFS_I(inode)->io_tree, page_start, page_end, 0,
&cached_state, GFP_NOFS);
&cached_state);
/* already ordered? We're done */
if (PagePrivate2(page))
@ -1765,7 +1764,7 @@ static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end)
lock_extent_bits(io_tree, ordered_extent->file_offset,
ordered_extent->file_offset + ordered_extent->len - 1,
0, &cached_state, GFP_NOFS);
0, &cached_state);
if (nolock)
trans = btrfs_join_transaction_nolock(root);
@ -3285,8 +3284,7 @@ again:
}
wait_on_page_writeback(page);
lock_extent_bits(io_tree, page_start, page_end, 0, &cached_state,
GFP_NOFS);
lock_extent_bits(io_tree, page_start, page_end, 0, &cached_state);
set_page_extent_mapped(page);
ordered = btrfs_lookup_ordered_extent(inode, page_start);
@ -3362,7 +3360,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
btrfs_wait_ordered_range(inode, hole_start,
block_end - hole_start);
lock_extent_bits(io_tree, hole_start, block_end - 1, 0,
&cached_state, GFP_NOFS);
&cached_state);
ordered = btrfs_lookup_ordered_extent(inode, hole_start);
if (!ordered)
break;
@ -5604,7 +5602,7 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
free_extent_map(em);
/* DIO will do one hole at a time, so just unlock a sector */
unlock_extent(&BTRFS_I(inode)->io_tree, start,
start + root->sectorsize - 1, GFP_NOFS);
start + root->sectorsize - 1);
return 0;
}
@ -5745,7 +5743,7 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
} while (bvec <= bvec_end);
unlock_extent(&BTRFS_I(inode)->io_tree, dip->logical_offset,
dip->logical_offset + dip->bytes - 1, GFP_NOFS);
dip->logical_offset + dip->bytes - 1);
bio->bi_private = dip->private;
kfree(dip->csums);
@ -5796,7 +5794,7 @@ again:
lock_extent_bits(&BTRFS_I(inode)->io_tree, ordered->file_offset,
ordered->file_offset + ordered->len - 1, 0,
&cached_state, GFP_NOFS);
&cached_state);
if (test_bit(BTRFS_ORDERED_PREALLOC, &ordered->flags)) {
ret = btrfs_mark_extent_written(trans, inode,
@ -6211,7 +6209,7 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
while (1) {
lock_extent_bits(&BTRFS_I(inode)->io_tree, lockstart, lockend,
0, &cached_state, GFP_NOFS);
0, &cached_state);
/*
* We're concerned with the entire range that we're going to be
* doing DIO to, so we need to make sure theres no ordered
@ -6365,8 +6363,7 @@ static void btrfs_invalidatepage(struct page *page, unsigned long offset)
btrfs_releasepage(page, GFP_NOFS);
return;
}
lock_extent_bits(tree, page_start, page_end, 0, &cached_state,
GFP_NOFS);
lock_extent_bits(tree, page_start, page_end, 0, &cached_state);
ordered = btrfs_lookup_ordered_extent(page->mapping->host,
page_offset(page));
if (ordered) {
@ -6388,8 +6385,7 @@ static void btrfs_invalidatepage(struct page *page, unsigned long offset)
}
btrfs_put_ordered_extent(ordered);
cached_state = NULL;
lock_extent_bits(tree, page_start, page_end, 0, &cached_state,
GFP_NOFS);
lock_extent_bits(tree, page_start, page_end, 0, &cached_state);
}
clear_extent_bit(tree, page_start, page_end,
EXTENT_LOCKED | EXTENT_DIRTY | EXTENT_DELALLOC |
@ -6464,8 +6460,7 @@ again:
}
wait_on_page_writeback(page);
lock_extent_bits(io_tree, page_start, page_end, 0, &cached_state,
GFP_NOFS);
lock_extent_bits(io_tree, page_start, page_end, 0, &cached_state);
set_page_extent_mapped(page);
/*

17
fs/btrfs/ioctl.c
View File

@ -797,9 +797,9 @@ static int should_defrag_range(struct inode *inode, u64 start, u64 len,
if (!em) {
/* get the big lock and read metadata off disk */
lock_extent(io_tree, start, start + len - 1, GFP_NOFS);
lock_extent(io_tree, start, start + len - 1);
em = btrfs_get_extent(inode, NULL, 0, start, len, 0);
unlock_extent(io_tree, start, start + len - 1, GFP_NOFS);
unlock_extent(io_tree, start, start + len - 1);
if (IS_ERR(em))
return 0;
@ -887,10 +887,10 @@ again:
page_start = page_offset(page);
page_end = page_start + PAGE_CACHE_SIZE - 1;
while (1) {
lock_extent(tree, page_start, page_end, GFP_NOFS);
lock_extent(tree, page_start, page_end);
ordered = btrfs_lookup_ordered_extent(inode,
page_start);
unlock_extent(tree, page_start, page_end, GFP_NOFS);
unlock_extent(tree, page_start, page_end);
if (!ordered)
break;
@ -946,8 +946,7 @@ again:
page_end = page_offset(pages[i_done - 1]) + PAGE_CACHE_SIZE;
lock_extent_bits(&BTRFS_I(inode)->io_tree,
page_start, page_end - 1, 0, &cached_state,
GFP_NOFS);
page_start, page_end - 1, 0, &cached_state);
clear_extent_bit(&BTRFS_I(inode)->io_tree, page_start,
page_end - 1, EXTENT_DIRTY | EXTENT_DELALLOC |
EXTENT_DO_ACCOUNTING, 0, 0, &cached_state,
@ -2326,13 +2325,13 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
another, and lock file content */
while (1) {
struct btrfs_ordered_extent *ordered;
lock_extent(&BTRFS_I(src)->io_tree, off, off+len, GFP_NOFS);
lock_extent(&BTRFS_I(src)->io_tree, off, off+len);
ordered = btrfs_lookup_first_ordered_extent(src, off+len);
if (!ordered &&
!test_range_bit(&BTRFS_I(src)->io_tree, off, off+len,
EXTENT_DELALLOC, 0, NULL))
break;
unlock_extent(&BTRFS_I(src)->io_tree, off, off+len, GFP_NOFS);
unlock_extent(&BTRFS_I(src)->io_tree, off, off+len);
if (ordered)
btrfs_put_ordered_extent(ordered);
btrfs_wait_ordered_range(src, off, len);
@ -2551,7 +2550,7 @@ next:
ret = 0;
out:
btrfs_release_path(path);
unlock_extent(&BTRFS_I(src)->io_tree, off, off+len, GFP_NOFS);
unlock_extent(&BTRFS_I(src)->io_tree, off, off+len);
out_unlock:
mutex_unlock(&src->i_mutex);
mutex_unlock(&inode->i_mutex);

22
fs/btrfs/relocation.c
View File

@ -1604,15 +1604,14 @@ int replace_file_extents(struct btrfs_trans_handle *trans,
WARN_ON(!IS_ALIGNED(end, root->sectorsize));
end--;
ret = try_lock_extent(&BTRFS_I(inode)->io_tree,
key.offset, end,
GFP_NOFS);
key.offset, end);
if (!ret)
continue;
btrfs_drop_extent_cache(inode, key.offset, end,
1);
unlock_extent(&BTRFS_I(inode)->io_tree,
key.offset, end, GFP_NOFS);
key.offset, end);
}
}
@ -1983,9 +1982,9 @@ static int invalidate_extent_cache(struct btrfs_root *root,
}
/* the lock_extent waits for readpage to complete */
lock_extent(&BTRFS_I(inode)->io_tree, start, end, GFP_NOFS);
lock_extent(&BTRFS_I(inode)->io_tree, start, end);
btrfs_drop_extent_cache(inode, start, end, 1);
unlock_extent(&BTRFS_I(inode)->io_tree, start, end, GFP_NOFS);
unlock_extent(&BTRFS_I(inode)->io_tree, start, end);
}
return 0;
}
@ -2889,12 +2888,12 @@ int prealloc_file_extent_cluster(struct inode *inode,
else
end = cluster->end - offset;
lock_extent(&BTRFS_I(inode)->io_tree, start, end, GFP_NOFS);
lock_extent(&BTRFS_I(inode)->io_tree, start, end);
num_bytes = end + 1 - start;
ret = btrfs_prealloc_file_range(inode, 0, start,
num_bytes, num_bytes,
end + 1, &alloc_hint);
unlock_extent(&BTRFS_I(inode)->io_tree, start, end, GFP_NOFS);
unlock_extent(&BTRFS_I(inode)->io_tree, start, end);
if (ret)
break;
nr++;
@ -2926,7 +2925,7 @@ int setup_extent_mapping(struct inode *inode, u64 start, u64 end,
em->bdev = root->fs_info->fs_devices->latest_bdev;
set_bit(EXTENT_FLAG_PINNED, &em->flags);
lock_extent(&BTRFS_I(inode)->io_tree, start, end, GFP_NOFS);
lock_extent(&BTRFS_I(inode)->io_tree, start, end);
while (1) {
write_lock(&em_tree->lock);
ret = add_extent_mapping(em_tree, em);
@ -2937,7 +2936,7 @@ int setup_extent_mapping(struct inode *inode, u64 start, u64 end,
}
btrfs_drop_extent_cache(inode, start, end, 0);
}
unlock_extent(&BTRFS_I(inode)->io_tree, start, end, GFP_NOFS);
unlock_extent(&BTRFS_I(inode)->io_tree, start, end);
return ret;
}
@ -3017,8 +3016,7 @@ static int relocate_file_extent_cluster(struct inode *inode,
page_start = (u64)page->index << PAGE_CACHE_SHIFT;
page_end = page_start + PAGE_CACHE_SIZE - 1;
lock_extent(&BTRFS_I(inode)->io_tree,
page_start, page_end, GFP_NOFS);
lock_extent(&BTRFS_I(inode)->io_tree, page_start, page_end);
set_page_extent_mapped(page);
@ -3034,7 +3032,7 @@ static int relocate_file_extent_cluster(struct inode *inode,
set_page_dirty(page);
unlock_extent(&BTRFS_I(inode)->io_tree,
page_start, page_end, GFP_NOFS);
page_start, page_end);
unlock_page(page);
page_cache_release(page);