diff options
Diffstat (limited to 'quotasys.c')
| -rw-r--r-- | quotasys.c | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -15,6 +15,7 @@ #include <time.h> #include <unistd.h> #include <fcntl.h> +#include <signal.h> #include <sys/types.h> #include <sys/stat.h> #include <sys/vfs.h> @@ -542,9 +543,18 @@ void init_kernel_interface(void) } else { struct v2_dqstats v2_stats; + struct sigaction sig, oldsig; if (!stat("/proc/fs/xfs/stat", &st)) kernel_formats |= (1 << QF_XFS); + /* This signal handling is needed because old kernels send us SIGSEGV as they try to resolve the device */ + sig.sa_handler = SIG_IGN; + sig.sa_sigaction = NULL; + if (sigemptyset(&sig.sa_mask) < 0) + die(2, _("Can't create set for sigaction(): %s\n"), strerror(errno)); + sig.sa_flags = 0; + if (sigaction(SIGSEGV, &sig, &oldsig) < 0) + die(2, _("Can't set signal handler: %s\n"), strerror(errno)); if (quotactl(QCMD(Q_V2_GETSTATS, 0), NULL, 0, (void *)&v2_stats) >= 0) { version = v2_stats.version; kernel_formats |= (1 << QF_VFSV0); @@ -578,6 +588,8 @@ void init_kernel_interface(void) version = 6*10000+4*100+0; } } + if (sigaction(SIGSEGV, &oldsig, NULL) < 0) + die(2, _("Can't reset signal handler: %s\n"), strerror(errno)); } if (version > KERN_KNOWN_QUOTA_VERSION) |