| Message ID | 6cd95c2965fedf3f2b2d8b5dbf1dcbb072067192.1712933005.git.fdmanana@suse.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | btrfs: some speedup for NOCOW write path and cleanups | expand |
在 2024/4/13 00:33, fdmanana@kernel.org 写道: > From: Filipe Manana <fdmanana@suse.com> > > Add a function comment to btrfs_lookup_csums_list() to document it. > With another upcoming change its parameter list and return value will be > less obvious. So add the documentation now so that it can be updated where > needed later. > > Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: Qu Wenruo <wqu@suse.com> Thanks, Qu > --- > fs/btrfs/file-item.c | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c > index e58fb5347e65..909438540119 100644 > --- a/fs/btrfs/file-item.c > +++ b/fs/btrfs/file-item.c > @@ -450,6 +450,19 @@ blk_status_t btrfs_lookup_bio_sums(struct btrfs_bio *bbio) > return ret; > } > > +/* > + * Search for checksums for a given logical range. > + * > + * @root: The root where to look for checksums. > + * @start: Logical address of target checksum range. > + * @end: End offset (inclusive) of the target checksum range. > + * @list: List for adding each checksum that was found. > + * @search_commit: Indicate if the commit root of the @root should be used > + * for the search. > + * @nowait: Indicate if the search must be non-blocking or not. > + * > + * Return < 0 on error and 0 on success. > + */ > int btrfs_lookup_csums_list(struct btrfs_root *root, u64 start, u64 end, > struct list_head *list, int search_commit, > bool nowait)
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index e58fb5347e65..909438540119 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -450,6 +450,19 @@ blk_status_t btrfs_lookup_bio_sums(struct btrfs_bio *bbio) return ret; } +/* + * Search for checksums for a given logical range. + * + * @root: The root where to look for checksums. + * @start: Logical address of target checksum range. + * @end: End offset (inclusive) of the target checksum range. + * @list: List for adding each checksum that was found. + * @search_commit: Indicate if the commit root of the @root should be used + * for the search. + * @nowait: Indicate if the search must be non-blocking or not. + * + * Return < 0 on error and 0 on success. + */ int btrfs_lookup_csums_list(struct btrfs_root *root, u64 start, u64 end, struct list_head *list, int search_commit, bool nowait)