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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2012-06-26 16:09:00 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2012-06-26 16:09:00 +0200 |
| commit | 9ad8979ff15e1b894ee1f4bb6a2535a1a2c20d65 (patch) | |
| tree | 3fccc38fb33635f61d456eb4dc0232a9863dc0d2 | |
| parent | ea664dde87d8e52df7d4003d988352a66562a945 (diff) | |
| download | busybox-9ad8979ff15e1b894ee1f4bb6a2535a1a2c20d65.tar.gz | |
mount: support strictatime option. Closes 5240
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | util-linux/mount.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/util-linux/mount.c b/util-linux/mount.c index b6c94d7ba..525fdcce9 100644 --- a/util-linux/mount.c +++ b/util-linux/mount.c @@ -113,6 +113,12 @@ #ifndef MS_RELATIME # define MS_RELATIME (1 << 21) #endif +#ifndef MS_STRICTATIME +# define MS_STRICTATIME (1 << 24) +#endif + +/* Any ~MS_FOO value has this bit set: */ +#define BB_MS_INVERTED_VALUE (1u << 31) #include "libbb.h" #if ENABLE_FEATURE_MOUNT_LABEL @@ -240,6 +246,7 @@ static const int32_t mount_options[] = { /* "nomand" */ ~MS_MANDLOCK, /* "relatime" */ MS_RELATIME, /* "norelatime" */ ~MS_RELATIME, + /* "strictatime" */ MS_STRICTATIME, /* "loud" */ ~MS_SILENT, /* "rbind" */ MS_BIND|MS_RECURSIVE, @@ -297,6 +304,7 @@ static const char mount_option_str[] = "nomand\0" "relatime\0" "norelatime\0" + "strictatime\0" "loud\0" "rbind\0" @@ -473,7 +481,7 @@ static unsigned long parse_mount_options(char *options, char **unrecognized) && (options[opt_len] == '\0' || options[opt_len] == '=') ) { unsigned long fl = mount_options[i]; - if ((long)fl < 0) + if (fl & BB_MS_INVERTED_VALUE) flags &= fl; else flags |= fl; |