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| author | David Howells <dhowells@redhat.com> | 2017-07-17 08:45:34 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2017-07-17 08:45:34 +0100 |
| commit | 94e92e7ac90d06e1e839e112d3ae80b2457dbdd7 (patch) | |
| tree | a21c79f5282e36379e5675de12f07c1d8359af05 | |
| parent | 87b2c3fc63175bb32c96d4ec58152d4fdd5a4ae1 (diff) | |
vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags
Add an sb_rdonly() function to query the MS_RDONLY flag on sb->s_flags
preparatory to providing an SB_RDONLY flag.
Signed-off-by: David Howells <dhowells@redhat.com>
| -rw-r--r-- | include/linux/fs.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 7b5d6816542b..6ae137c1bdf6 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1844,7 +1844,8 @@ struct super_operations { */ #define __IS_FLG(inode, flg) ((inode)->i_sb->s_flags & (flg)) -#define IS_RDONLY(inode) ((inode)->i_sb->s_flags & MS_RDONLY) +static inline bool sb_rdonly(const struct super_block *sb) { return sb->s_flags & MS_RDONLY; } +#define IS_RDONLY(inode) sb_rdonly((inode)->i_sb) #define IS_SYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS) || \ ((inode)->i_flags & S_SYNC)) #define IS_DIRSYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \ |