From 714082bc12b6c305f825411df02177efcb0085f1 Mon Sep 17 00:00:00 2001 From: David Chinner Date: Thu, 10 Apr 2008 12:20:03 +1000 Subject: [XFS] Report errors from xfs_reserve_blocks(). xfs_reserve_blocks() can fail in interesting ways. In neither case is it a fatal error, but the result can lead to sub-optimal behaviour. Warn to the syslog if the call fails but otherwise continue. SGI-PV: 980084 SGI-Modid: xfs-linux-melb:xfs-kern:30784a Signed-off-by: David Chinner Signed-off-by: Niv Sardi Signed-off-by: Lachlan McIlroy --- fs/xfs/xfs_mount.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'fs') diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index eb348c16850..244aa1b9f13 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1227,12 +1227,15 @@ xfs_mountfs( * * We default to 5% or 1024 fsbs of space reserved, whichever is smaller. * This may drive us straight to ENOSPC on mount, but that implies - * we were already there on the last unmount. + * we were already there on the last unmount. Warn if this occurs. */ resblks = mp->m_sb.sb_dblocks; do_div(resblks, 20); resblks = min_t(__uint64_t, resblks, 1024); - xfs_reserve_blocks(mp, &resblks, NULL); + error = xfs_reserve_blocks(mp, &resblks, NULL); + if (error) + cmn_err(CE_WARN, "XFS: Unable to allocate reserve blocks. " + "Continuing without a reserve pool."); return 0; @@ -1268,6 +1271,7 @@ int xfs_unmountfs(xfs_mount_t *mp, struct cred *cr) { __uint64_t resblks; + int error = 0; /* * We can potentially deadlock here if we have an inode cluster @@ -1311,7 +1315,11 @@ xfs_unmountfs(xfs_mount_t *mp, struct cred *cr) * value does not matter.... */ resblks = 0; - xfs_reserve_blocks(mp, &resblks, NULL); + error = xfs_reserve_blocks(mp, &resblks, NULL); + if (error) + cmn_err(CE_WARN, "XFS: Unable to free reserved block pool. " + "Freespace may not be correct on next mount."); + xfs_log_sbcount(mp, 1); xfs_unmountfs_writesb(mp); -- cgit v1.2.3-18-g5258