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authorChristoph Hellwig <hch@lst.de>2023-06-28 18:31:42 +0300
committerDavid Sterba <dsterba@suse.com>2023-08-21 15:52:16 +0300
commit778b878543f05ddf11843cd44ba9b1e775216fc0 (patch)
treebb2c2174d0814ccb63d2501dfbf366e346643867 /fs/btrfs/inode.c
parent6e144bf16ba07dff649e6bd6afd79d2e353f6216 (diff)
downloadlinux-778b878543f05ddf11843cd44ba9b1e775216fc0.tar.xz
btrfs: don't redirty locked_page in run_delalloc_zoned
extent_write_locked_range currently expects that either all or no pages are dirty when it is called. Bur run_delalloc_zoned is called directly in the writepages path, and has the dirty bit cleared only for locked_page and which the extent_write_cache_pages currently operates. It currently works around this by redirtying locked_page, but that is a bit inefficient and cumbersome. Pass a locked_page argument to run_delalloc_zoned so that clearing the dirty bit can be skipped on just that page. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 0617e47fb9e3..29a137d55cf2 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1105,7 +1105,8 @@ static void submit_uncompressed_range(struct btrfs_inode *inode,
/* All pages will be unlocked, including @locked_page */
wbc_attach_fdatawrite_inode(&wbc, &inode->vfs_inode);
- extent_write_locked_range(&inode->vfs_inode, start, end, &wbc, false);
+ extent_write_locked_range(&inode->vfs_inode, NULL, start, end, &wbc,
+ false);
wbc_detach_inode(&wbc);
}
@@ -1719,7 +1720,6 @@ static noinline int run_delalloc_zoned(struct btrfs_inode *inode,
{
u64 done_offset = end;
int ret;
- bool locked_page_done = false;
while (start <= end) {
ret = cow_file_range(inode, locked_page, start, end, &done_offset,
@@ -1727,13 +1727,8 @@ static noinline int run_delalloc_zoned(struct btrfs_inode *inode,
if (ret)
return ret;
- if (!locked_page_done) {
- __set_page_dirty_nobuffers(locked_page);
- account_page_redirty(locked_page);
- }
- locked_page_done = true;
- extent_write_locked_range(&inode->vfs_inode, start, done_offset,
- wbc, true);
+ extent_write_locked_range(&inode->vfs_inode, locked_page, start,
+ done_offset, wbc, true);
start = done_offset + 1;
}