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From 13e5d8455c22d4db420ead9fde3ee0c1536b73a3 Mon Sep 17 00:00:00 2001
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From: Jes Sorensen <jsorensen@fb.com>
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Date: Tue, 9 May 2017 16:38:06 -0400
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Subject: [RHEL7.5 PATCH 126/169] Monitor/check_array: Reduce duplicated
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error handling
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Avoid closing fd in multiple places, and duplicating the error message
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for when a device disappeared.
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Signed-off-by: Jes Sorensen <jsorensen@fb.com>
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---
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Monitor.c | 39 +++++++++++++++------------------------
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1 file changed, 15 insertions(+), 24 deletions(-)
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diff --git a/Monitor.c b/Monitor.c
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index f404009..c519877 100644
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--- a/Monitor.c
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+++ b/Monitor.c
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@@ -467,29 +467,16 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
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retval = 0;
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fd = open(dev, O_RDONLY);
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- if (fd < 0) {
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- if (!st->err)
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- alert("DeviceDisappeared", dev, NULL, ainfo);
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- st->err++;
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- goto out;
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- }
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+ if (fd < 0)
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+ goto disappeared;
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- if (!md_array_active(fd)) {
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- close(fd);
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- if (!st->err)
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- alert("DeviceDisappeared", dev, NULL, ainfo);
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- st->err++;
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- goto out;
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- }
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+ if (!md_array_active(fd))
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+ goto disappeared;
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fcntl(fd, F_SETFD, FD_CLOEXEC);
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- if (md_get_array_info(fd, &array) < 0) {
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- if (!st->err)
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- alert("DeviceDisappeared", dev, NULL, ainfo);
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- st->err++;
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- close(fd);
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- goto out;
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- }
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+ if (md_get_array_info(fd, &array) < 0)
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+ goto disappeared;
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+
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/* It's much easier to list what array levels can't
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* have a device disappear than all of them that can
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*/
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@@ -497,7 +484,6 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
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if (!st->err && !st->from_config)
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alert("DeviceDisappeared", dev, " Wrong-Level", ainfo);
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st->err++;
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- close(fd);
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goto out;
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}
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if (st->devnm[0] == 0)
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@@ -534,7 +520,6 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
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st->working == array.working_disks &&
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st->spare == array.spare_disks &&
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(mse == NULL || (mse->percent == st->percent))) {
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- close(fd);
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if ((st->active < st->raid) && st->spare == 0)
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retval = 1;
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goto out;
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@@ -614,8 +599,6 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
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if (st->metadata == NULL && st->parent_devnm[0] == 0)
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st->metadata = super_by_fd(fd, NULL);
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- close(fd);
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-
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for (i=0; i
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mdu_disk_info_t disc = {0,0,0,0,0};
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int newstate=0;
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@@ -661,7 +644,15 @@ static int check_array(struct state *st, struct mdstat_ent *mdstat,
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retval = 1;
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out:
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+ if (fd > 0)
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+ close(fd);
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return retval;
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+
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+ disappeared:
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+ if (!st->err)
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+ alert("DeviceDisappeared", dev, NULL, ainfo);
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+ st->err++;
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+ goto out;
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}
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static int add_new_arrays(struct mdstat_ent *mdstat, struct state **statelist,
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--
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2.7.4
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