diff options
| author | Ingo Molnar <mingo@elte.hu> | 2010-08-31 09:45:21 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-08-31 09:45:46 +0200 |
| commit | daab7fc734a53fdeaf844b7c03053118ad1769da (patch) | |
| tree | 575deb3cdcc6dda562acaed6f7c29bc81ae01cf2 /include/linux/fs_struct.h | |
| parent | 774ea0bcb27f57b6fd521b3b6c43237782fed4b9 (diff) | |
| parent | 2bfc96a127bc1cc94d26bfaa40159966064f9c8c (diff) | |
Merge commit 'v2.6.36-rc3' into x86/memblock
Conflicts:
arch/x86/kernel/trampoline.c
mm/memblock.c
Merge reason: Resolve the conflicts, update to latest upstream.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/fs_struct.h')
| -rw-r--r-- | include/linux/fs_struct.h | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h index 78a05bfcd8eb..a42b5bf02f8b 100644 --- a/include/linux/fs_struct.h +++ b/include/linux/fs_struct.h @@ -5,7 +5,7 @@ struct fs_struct { int users; - rwlock_t lock; + spinlock_t lock; int umask; int in_exec; struct path root, pwd; @@ -21,4 +21,31 @@ extern void free_fs_struct(struct fs_struct *); extern void daemonize_fs_struct(void); extern int unshare_fs_struct(void); +static inline void get_fs_root(struct fs_struct *fs, struct path *root) +{ + spin_lock(&fs->lock); + *root = fs->root; + path_get(root); + spin_unlock(&fs->lock); +} + +static inline void get_fs_pwd(struct fs_struct *fs, struct path *pwd) +{ + spin_lock(&fs->lock); + *pwd = fs->pwd; + path_get(pwd); + spin_unlock(&fs->lock); +} + +static inline void get_fs_root_and_pwd(struct fs_struct *fs, struct path *root, + struct path *pwd) +{ + spin_lock(&fs->lock); + *root = fs->root; + path_get(root); + *pwd = fs->pwd; + path_get(pwd); + spin_unlock(&fs->lock); +} + #endif /* _LINUX_FS_STRUCT_H */ |