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openSUSE:Step:15-SP2
ebtables.19024
0001-fix-concurrent-and-nfs.patch
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File 0001-fix-concurrent-and-nfs.patch of Package ebtables.19024
From: Firo Yang @ 2021-04-16 4:11 UTC (permalink / raw) To: pablo, netfilter-devel; +Cc: sflees, firogm, Firo Yang Due to the following commit[1] from kernel, if '/var/lib/ebtables' was mounted with a NFS filesystem, ebtables command will hit the following error: mount | grep nfs x.x.x.x:/var/lib/ebtables on /var/lib/ebtables type nfs4 [...] /usr/sbin/ebtables --concurrent -L Trying to obtain lock /var/lib/ebtables/lock Trying to obtain lock /var/lib/ebtables/lock Trying to obtain lock /var/lib/ebtables/lock Trying to obtain lock /var/lib/ebtables/lock [...] In order to fix this problem, add 'O_WRONLY' to match the requirement of that kernel commit[1]. [1]: 55725513b5ef ("NFSv4: Ensure that we check lock exclusive/shared type against open modes") Signed-off-by: Firo Yang <firo.yang@suse.com> --- libebtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: ebtables-v2.0.10-4/libebtc.c =================================================================== --- ebtables-v2.0.10-4.orig/libebtc.c +++ ebtables-v2.0.10-4/libebtc.c @@ -146,7 +146,7 @@ static int lock_file() int fd, try = 0; retry: - fd = open(LOCKFILE, O_CREAT, 00600); + fd = open(LOCKFILE, O_CREAT|O_WRONLY, 00600); if (fd < 0) { if (try == 1 || mkdir(LOCKDIR, 00700)) return -2;
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