xfs: improve the comments in xfs_select_zone_nowait

[ Upstream commit 60e02f956d77af31b85ed4e73abf85d5f12d0a98 ]

The top of the function comment is outdated, and the parts still correct
duplicate information in comment inside the function.  Remove the top of
the function comment and instead improve a comment inside the function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
Stable-dep-of: d2845519b072 ("xfs: fully decouple XFS_IBULK* flags from XFS_IWALK* flags")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/xfs/xfs_zone_alloc.c b/fs/xfs/xfs_zone_alloc.c
index 01315ed75502dc3b157cb3935c34ed2370e99385..417895f8a24c748eddf10b7b1ffce8726dc4b370 100644 (file)
--- a/fs/xfs/xfs_zone_alloc.c
+++ b/fs/xfs/xfs_zone_alloc.c
@@ -654,13 +654,6 @@ static inline bool xfs_zoned_pack_tight(struct xfs_inode *ip)
                !(ip->i_diflags & XFS_DIFLAG_APPEND);
 }
 
-/*
- * Pick a new zone for writes.
- *
- * If we aren't using up our budget of open zones just open a new one from the
- * freelist.  Else try to find one that matches the expected data lifetime.  If
- * we don't find one that is good pick any zone that is available.
- */
 static struct xfs_open_zone *
 xfs_select_zone_nowait(
        struct xfs_mount        *mp,
@@ -688,7 +681,8 @@ xfs_select_zone_nowait(
                goto out_unlock;
 
        /*
-        * See if we can open a new zone and use that.
+        * See if we can open a new zone and use that so that data for different
+        * files is mixed as little as possible.
         */
        oz = xfs_try_open_zone(mp, write_hint);
        if (oz)