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| author | Arnd Bergmann <arnd@arndb.de> | 2018-06-12 16:31:17 +0300 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2019-12-18 20:07:32 +0300 |
| commit | bca302651af496615829be13165552a2c160a1a1 (patch) | |
| tree | 57e77738a2f94df8af441e5c9a6893fd7f0b4ac2 /fs/hostfs/hostfs.h | |
| parent | d413fcb436f79b6305201494ec13099171ba33a6 (diff) | |
| download | linux-bca302651af496615829be13165552a2c160a1a1.tar.xz | |
hostfs: pass 64-bit timestamps to/from user space
The use of 'struct timespec' is deprecated in the kernel, so we
want to avoid the conversions from/to the proper timespec64
structure.
On the user space side, we have a 'struct timespec' that is defined
by the C library and that will be incompatible with the kernel's
view on 32-bit architectures once they move to a 64-bit time_t,
breaking the shared binary layout of hostfs_iattr and hostfs_stat.
This changes the two structures to use a new hostfs_timespec structure
with fixed 64-bit seconds/nanoseconds for passing the timestamps
between hostfs_kern.c and hostfs_user.c. With a new enough user
space side, this will allow timestamps beyond year 2038.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'fs/hostfs/hostfs.h')
| -rw-r--r-- | fs/hostfs/hostfs.h | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/fs/hostfs/hostfs.h b/fs/hostfs/hostfs.h index f4295aa19350..69cb796f6270 100644 --- a/fs/hostfs/hostfs.h +++ b/fs/hostfs/hostfs.h @@ -37,16 +37,20 @@ * is on, and remove the appropriate bits from attr->ia_mode (attr is a * "struct iattr *"). -BlaisorBlade */ +struct hostfs_timespec { + long long tv_sec; + long long tv_nsec; +}; struct hostfs_iattr { - unsigned int ia_valid; - unsigned short ia_mode; - uid_t ia_uid; - gid_t ia_gid; - loff_t ia_size; - struct timespec ia_atime; - struct timespec ia_mtime; - struct timespec ia_ctime; + unsigned int ia_valid; + unsigned short ia_mode; + uid_t ia_uid; + gid_t ia_gid; + loff_t ia_size; + struct hostfs_timespec ia_atime; + struct hostfs_timespec ia_mtime; + struct hostfs_timespec ia_ctime; }; struct hostfs_stat { @@ -56,7 +60,7 @@ struct hostfs_stat { unsigned int uid; unsigned int gid; unsigned long long size; - struct timespec atime, mtime, ctime; + struct hostfs_timespec atime, mtime, ctime; unsigned int blksize; unsigned long long blocks; unsigned int maj; |