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btrfs: Remove extent_io_ops::writepage_start_hook

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This hook is called only from __extent_writepage_io which is already
called only from the data page writeout path. So there is no need to
make an indirect call via extent_io_ops. This patch just removes the
callback definition, exports the callback function and calls it directly
at the only call site. Also give the function a more descriptive name.
No functional changes.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov
2018-11-01 14:09:47 +02:00
committed by David Sterba
parent 5eaad97af8
commit d75855b451
4 changed files with 12 additions and 16 deletions
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1
fs/btrfs/ctree.h
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@@ -3192,6 +3192,7 @@ int btrfs_prealloc_file_range_trans(struct inode *inode,
int btrfs_run_delalloc_range(void *private_data, struct page *locked_page,
u64 start, u64 end, int *page_started, unsigned long *nr_written,
struct writeback_control *wbc);
int btrfs_writepage_cow_fixup(struct page *page, u64 start, u64 end);
extern const struct dentry_operations btrfs_dentry_operations;
/* ioctl.c */