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authorBob Peterson <rpeterso@redhat.com>2018-10-04 10:21:07 -0500
committerBob Peterson <rpeterso@redhat.com>2018-10-05 10:51:11 -0500
commitb524abcc01483b2ac093cc6a8a2a7375558d2b64 (patch)
tree125fe18370d8aa5a59df22e167ed5b8efe1cf1f0
parent4f36cb36c9d14340bb200d2ad9117b03ce992cfe (diff)
downloadlinux-next-b524abcc01483b2ac093cc6a8a2a7375558d2b64.tar.gz
gfs2: slow the deluge of io error messages
When an io error is hit, it calls gfs2_io_error_bh_i for every journal buffer it can't write. Since we changed gfs2_io_error_bh_i recently to withdraw later in the cycle, it sends a flood of errors to the console. This patch checks for the file system already being withdrawn, and if so, doesn't send more messages. It doesn't stop the flood of messages, but it slows it down and keeps it more reasonable. Signed-off-by: Bob Peterson <rpeterso@redhat.com>
-rw-r--r--fs/gfs2/incore.h1
-rw-r--r--fs/gfs2/log.c7
-rw-r--r--fs/gfs2/util.c13
3 files changed, 13 insertions, 8 deletions
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index b96d39c28e17..5d72e8b66a26 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -623,6 +623,7 @@ enum {
SDF_RORECOVERY = 7, /* read only recovery */
SDF_SKIP_DLM_UNLOCK = 8,
SDF_FORCE_AIL_FLUSH = 9,
+ SDF_AIL1_IO_ERROR = 10,
};
enum gfs2_freeze_state {
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index ee20ea42e7b5..96706a2bd2b6 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -108,7 +108,9 @@ __acquires(&sdp->sd_ail_lock)
gfs2_assert(sdp, bd->bd_tr == tr);
if (!buffer_busy(bh)) {
- if (!buffer_uptodate(bh)) {
+ if (!buffer_uptodate(bh) &&
+ !test_and_set_bit(SDF_AIL1_IO_ERROR,
+ &sdp->sd_flags)) {
gfs2_io_error_bh(sdp, bh);
*withdraw = true;
}
@@ -206,7 +208,8 @@ static void gfs2_ail1_empty_one(struct gfs2_sbd *sdp, struct gfs2_trans *tr,
gfs2_assert(sdp, bd->bd_tr == tr);
if (buffer_busy(bh))
continue;
- if (!buffer_uptodate(bh)) {
+ if (!buffer_uptodate(bh) &&
+ !test_and_set_bit(SDF_AIL1_IO_ERROR, &sdp->sd_flags)) {
gfs2_io_error_bh(sdp, bh);
*withdraw = true;
}
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index b072b10fb635..0a814ccac41d 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -259,12 +259,13 @@ void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
const char *function, char *file, unsigned int line,
bool withdraw)
{
- fs_err(sdp,
- "fatal: I/O error\n"
- " block = %llu\n"
- " function = %s, file = %s, line = %u\n",
- (unsigned long long)bh->b_blocknr,
- function, file, line);
+ if (!test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
+ fs_err(sdp,
+ "fatal: I/O error\n"
+ " block = %llu\n"
+ " function = %s, file = %s, line = %u\n",
+ (unsigned long long)bh->b_blocknr,
+ function, file, line);
if (withdraw)
gfs2_lm_withdraw(sdp, NULL);
}