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btrfs: Evaluate io_tree in find_lock_delalloc_range()

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Simplification.  No point passing the tree variable when it can be
evaluated from inode. The tests now use the io_tree from btrfs_inode as
opposed to creating one.

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Goldwyn Rodrigues 2019-06-21 10:02:54 -05:00 committed by David Sterba
parent 67f9c2209e
commit 9978059be8
3 changed files with 19 additions and 19 deletions
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6
fs/btrfs/extent_io.c
View file

@ -1780,10 +1780,10 @@ static noinline int lock_delalloc_pages(struct inode *inode,
*/
EXPORT_FOR_TESTS
noinline_for_stack bool find_lock_delalloc_range(struct inode *inode,
struct extent_io_tree *tree,
struct page *locked_page, u64 *start,
u64 *end)
{
struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
u64 max_bytes = BTRFS_MAX_EXTENT_SIZE;
u64 delalloc_start;
u64 delalloc_end;
@ -3330,7 +3330,6 @@ static noinline_for_stack int writepage_delalloc(struct inode *inode,
struct page *page, struct writeback_control *wbc,
u64 delalloc_start, unsigned long *nr_written)
{
struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
u64 page_end = delalloc_start + PAGE_SIZE - 1;
bool found;
u64 delalloc_to_write = 0;
@ -3340,8 +3339,7 @@ static noinline_for_stack int writepage_delalloc(struct inode *inode,
while (delalloc_end < page_end) {
found = find_lock_delalloc_range(inode, tree,
page,
found = find_lock_delalloc_range(inode, page,
&delalloc_start,
&delalloc_end);
if (!found) {

2
fs/btrfs/extent_io.h
View file

@ -549,7 +549,7 @@ int free_io_failure(struct extent_io_tree *failure_tree,
struct extent_io_tree *io_tree,
struct io_failure_record *rec);
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
bool find_lock_delalloc_range(struct inode *inode, struct extent_io_tree *tree,
bool find_lock_delalloc_range(struct inode *inode,
struct page *locked_page, u64 *start,
u64 *end);
#endif

30
fs/btrfs/tests/extent-io-tests.c
View file

@ -10,6 +10,7 @@
#include "btrfs-tests.h"
#include "../ctree.h"
#include "../extent_io.h"
#include "../btrfs_inode.h"
#define PROCESS_UNLOCK (1 << 0)
#define PROCESS_RELEASE (1 << 1)
@ -58,7 +59,7 @@ static noinline int process_page_range(struct inode *inode, u64 start, u64 end,
static int test_find_delalloc(u32 sectorsize)
{
struct inode *inode;
struct extent_io_tree tmp;
struct extent_io_tree *tmp;
struct page *page;
struct page *locked_page = NULL;
unsigned long index = 0;
@ -76,12 +77,13 @@ static int test_find_delalloc(u32 sectorsize)
test_std_err(TEST_ALLOC_INODE);
return -ENOMEM;
}
tmp = &BTRFS_I(inode)->io_tree;
/*
* Passing NULL as we don't have fs_info but tracepoints are not used
* at this point
*/
extent_io_tree_init(NULL, &tmp, IO_TREE_SELFTEST, NULL);
extent_io_tree_init(NULL, tmp, IO_TREE_SELFTEST, NULL);
/*
* First go through and create and mark all of our pages dirty, we pin
@ -108,10 +110,10 @@ static int test_find_delalloc(u32 sectorsize)
* |--- delalloc ---|
* |--- search ---|
*/
set_extent_delalloc(&tmp, 0, sectorsize - 1, 0, NULL);
set_extent_delalloc(tmp, 0, sectorsize - 1, 0, NULL);
start = 0;
end = 0;
found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
found = find_lock_delalloc_range(inode, locked_page, &start,
&end);
if (!found) {
test_err("should have found at least one delalloc");
@ -122,7 +124,7 @@ static int test_find_delalloc(u32 sectorsize)
sectorsize - 1, start, end);
goto out_bits;
}
unlock_extent(&tmp, start, end);
unlock_extent(tmp, start, end);
unlock_page(locked_page);
put_page(locked_page);
@ -139,10 +141,10 @@ static int test_find_delalloc(u32 sectorsize)
test_err("couldn't find the locked page");
goto out_bits;
}
set_extent_delalloc(&tmp, sectorsize, max_bytes - 1, 0, NULL);
set_extent_delalloc(tmp, sectorsize, max_bytes - 1, 0, NULL);
start = test_start;
end = 0;
found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
found = find_lock_delalloc_range(inode, locked_page, &start,
&end);
if (!found) {
test_err("couldn't find delalloc in our range");
@ -158,7 +160,7 @@ static int test_find_delalloc(u32 sectorsize)
test_err("there were unlocked pages in the range");
goto out_bits;
}
unlock_extent(&tmp, start, end);
unlock_extent(tmp, start, end);
/* locked_page was unlocked above */
put_page(locked_page);
@ -176,7 +178,7 @@ static int test_find_delalloc(u32 sectorsize)
}
start = test_start;
end = 0;
found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
found = find_lock_delalloc_range(inode, locked_page, &start,
&end);
if (found) {
test_err("found range when we shouldn't have");
@ -194,10 +196,10 @@ static int test_find_delalloc(u32 sectorsize)
*
* We are re-using our test_start from above since it works out well.
*/
set_extent_delalloc(&tmp, max_bytes, total_dirty - 1, 0, NULL);
set_extent_delalloc(tmp, max_bytes, total_dirty - 1, 0, NULL);
start = test_start;
end = 0;
found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
found = find_lock_delalloc_range(inode, locked_page, &start,
&end);
if (!found) {
test_err("didn't find our range");
@ -213,7 +215,7 @@ static int test_find_delalloc(u32 sectorsize)
test_err("pages in range were not all locked");
goto out_bits;
}
unlock_extent(&tmp, start, end);
unlock_extent(tmp, start, end);
/*
* Now to test where we run into a page that is no longer dirty in the
@ -238,7 +240,7 @@ static int test_find_delalloc(u32 sectorsize)
* this changes at any point in the future we will need to fix this
* tests expected behavior.
*/
found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
found = find_lock_delalloc_range(inode, locked_page, &start,
&end);
if (!found) {
test_err("didn't find our range");
@ -256,7 +258,7 @@ static int test_find_delalloc(u32 sectorsize)
}
ret = 0;
out_bits:
clear_extent_bits(&tmp, 0, total_dirty - 1, (unsigned)-1);
clear_extent_bits(tmp, 0, total_dirty - 1, (unsigned)-1);
out:
if (locked_page)
put_page(locked_page);