From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Bob Peterson <rpeterso@redhat.com>,
Andreas Gruenbacher <agruenba@redhat.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.11 06/23] gfs2: report "already frozen/thawed" errors
Date: Thu, 15 Apr 2021 16:48:13 +0200 [thread overview]
Message-ID: <20210415144413.355711423@linuxfoundation.org> (raw)
In-Reply-To: <20210415144413.146131392@linuxfoundation.org>
From: Bob Peterson <rpeterso@redhat.com>
[ Upstream commit ff132c5f93c06bd4432bbab5c369e468653bdec4 ]
Before this patch, gfs2's freeze function failed to report an error
when the target file system was already frozen as it should (and as
generic vfs function freeze_super does. Similarly, gfs2's thaw function
failed to report an error when trying to thaw a file system that is not
frozen, as vfs function thaw_super does. The errors were checked, but
it always returned a 0 return code.
This patch adds the missing error return codes to gfs2 freeze and thaw.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/gfs2/super.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 34ca312457a6..223ebd6b1b8d 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -767,11 +767,13 @@ void gfs2_freeze_func(struct work_struct *work)
static int gfs2_freeze(struct super_block *sb)
{
struct gfs2_sbd *sdp = sb->s_fs_info;
- int error = 0;
+ int error;
mutex_lock(&sdp->sd_freeze_mutex);
- if (atomic_read(&sdp->sd_freeze_state) != SFS_UNFROZEN)
+ if (atomic_read(&sdp->sd_freeze_state) != SFS_UNFROZEN) {
+ error = -EBUSY;
goto out;
+ }
for (;;) {
if (gfs2_withdrawn(sdp)) {
@@ -812,10 +814,10 @@ static int gfs2_unfreeze(struct super_block *sb)
struct gfs2_sbd *sdp = sb->s_fs_info;
mutex_lock(&sdp->sd_freeze_mutex);
- if (atomic_read(&sdp->sd_freeze_state) != SFS_FROZEN ||
+ if (atomic_read(&sdp->sd_freeze_state) != SFS_FROZEN ||
!gfs2_holder_initialized(&sdp->sd_freeze_gh)) {
mutex_unlock(&sdp->sd_freeze_mutex);
- return 0;
+ return -EINVAL;
}
gfs2_freeze_unlock(&sdp->sd_freeze_gh);
--
2.30.2
next prev parent reply other threads:[~2021-04-15 15:15 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-15 14:48 [PATCH 5.11 00/23] 5.11.15-rc1 review Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 01/23] interconnect: core: fix error return code of icc_link_destroy() Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 02/23] gfs2: Flag a withdraw if init_threads() fails Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 03/23] KVM: arm64: Hide system instruction access to Trace registers Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 04/23] KVM: arm64: Disable guest access to trace filter controls Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 05/23] drm/imx: imx-ldb: fix out of bounds array access warning Greg Kroah-Hartman
2021-04-15 14:48 ` Greg Kroah-Hartman [this message]
2021-04-15 14:48 ` [PATCH 5.11 07/23] ftrace: Check if pages were allocated before calling free_pages() Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 08/23] tools/kvm_stat: Add restart delay Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 09/23] drm/tegra: dc: Dont set PLL clock to 0Hz Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 10/23] gpu: host1x: Use different lock classes for each client Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 11/23] XArray: Fix splitting to non-zero orders Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 12/23] radix tree test suite: Fix compilation Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 13/23] block: only update parent bi_status when bio fail Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 14/23] radix tree test suite: Register the main thread with the RCU library Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 15/23] idr test suite: Take RCU read lock in idr_find_test_1 Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 16/23] idr test suite: Create anchor before launching throbber Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 17/23] null_blk: fix command timeout completion handling Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 18/23] io_uring: dont mark S_ISBLK async work as unbounded Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 19/23] riscv,entry: fix misaligned base for excp_vect_table Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 20/23] block: dont ignore REQ_NOWAIT for direct IO Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 21/23] netfilter: x_tables: fix compat match/target pad out-of-bound write Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 22/23] perf map: Tighten snprintf() string precision to pass gcc check on some 32-bit arches Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.11 23/23] net: sfp: cope with SFPs that set both LOS normal and LOS inverted Greg Kroah-Hartman
2021-04-15 22:42 ` [PATCH 5.11 00/23] 5.11.15-rc1 review Shuah Khan
2021-04-16 1:02 ` Naresh Kamboju
2021-04-16 17:31 ` Fox Chen
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