From e78a40b851712b422d7d4ae345f25511d47a9a38 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 4 Oct 2023 09:25:04 +1100 Subject: xfs: abort fstrim if kernel is suspending A recent ext4 patch posting from Jan Kara reminded me of a discussion a year ago about fstrim in progress preventing kernels from suspending. The fix is simple, we should do the same for XFS. This removes the -ERESTARTSYS error return from this code, replacing it with either the last error seen or the number of blocks successfully trimmed up to the point where we detected the stop condition. References: https://bugzilla.kernel.org/show_bug.cgi?id=216322 Signed-off-by: Dave Chinner Reviewed-by: Darrick J. Wong --- fs/xfs/xfs_discard.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) (limited to 'fs') diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c index f16b254b5eaa..d5787991bb5b 100644 --- a/fs/xfs/xfs_discard.c +++ b/fs/xfs/xfs_discard.c @@ -283,6 +283,12 @@ out_del_cursor: return error; } +static bool +xfs_trim_should_stop(void) +{ + return fatal_signal_pending(current) || freezing(current); +} + /* * Iterate the free list gathering extents and discarding them. We need a cursor * for the repeated iteration of gather/discard loop, so use the longest extent @@ -336,10 +342,9 @@ xfs_trim_extents( if (error) break; - if (fatal_signal_pending(current)) { - error = -ERESTARTSYS; + if (xfs_trim_should_stop()) break; - } + } while (tcur.ar_blockcount != 0); return error; @@ -408,12 +413,12 @@ xfs_ioc_trim( for_each_perag_range(mp, agno, xfs_daddr_to_agno(mp, end), pag) { error = xfs_trim_extents(pag, start, end, minlen, &blocks_trimmed); - if (error) { + if (error) last_error = error; - if (error == -ERESTARTSYS) { - xfs_perag_rele(pag); - break; - } + + if (xfs_trim_should_stop()) { + xfs_perag_rele(pag); + break; } } -- cgit v1.2.3