github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-31 02:24:24 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

xfs: reduce metafile reservations

Browse Source 
There is no point in reserving more space than actually available
on the data device for the worst case scenario that is unlikely to
happen.  Reserve at most 1/4th of the data device blocks, which is
still a heuristic.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
This commit is contained in:
Christoph Hellwig 2025-01-17 06:55:08 +01:00
parent 1df8d75030
commit 272e20bb24
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/xfs/libxfs/xfs_metafile.c
View File

@ -260,6 +260,7 @@ xfs_metafile_resv_init(
struct xfs_rtgroup *rtg = NULL;
xfs_filblks_t used = 0, target = 0;
xfs_filblks_t hidden_space;
xfs_rfsblock_t dblocks_avail = mp->m_sb.sb_dblocks / 4;
int error = 0;
if (!xfs_has_metadir(mp))
@ -297,6 +298,8 @@ xfs_metafile_resv_init(
*/
if (used > target)
target = used;
else if (target > dblocks_avail)
target = dblocks_avail;
hidden_space = target - used;
error = xfs_dec_fdblocks(mp, hidden_space, true);