summaryrefslogtreecommitdiffstats
path: root/Documentation/filesystems/Locking
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/filesystems/Locking')
-rw-r--r--Documentation/filesystems/Locking11
1 files changed, 7 insertions, 4 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index 8e2da1e06e3b..e0cce2a5f820 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -9,7 +9,7 @@ be able to use diff(1).
--------------------------- dentry_operations --------------------------
prototypes:
- int (*d_revalidate)(struct dentry *, struct nameidata *);
+ int (*d_revalidate)(struct dentry *, unsigned int);
int (*d_hash)(const struct dentry *, const struct inode *,
struct qstr *);
int (*d_compare)(const struct dentry *, const struct inode *,
@@ -37,9 +37,8 @@ d_manage: no no yes (ref-walk) maybe
--------------------------- inode_operations ---------------------------
prototypes:
- int (*create) (struct inode *,struct dentry *,umode_t, struct nameidata *);
- struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameid
-ata *);
+ int (*create) (struct inode *,struct dentry *,umode_t, bool);
+ struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
int (*link) (struct dentry *,struct inode *,struct dentry *);
int (*unlink) (struct inode *,struct dentry *);
int (*symlink) (struct inode *,struct dentry *,const char *);
@@ -62,6 +61,9 @@ ata *);
int (*removexattr) (struct dentry *, const char *);
int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len);
void (*update_time)(struct inode *, struct timespec *, int);
+ int (*atomic_open)(struct inode *, struct dentry *,
+ struct file *, unsigned open_flag,
+ umode_t create_mode, int *opened);
locking rules:
all may block
@@ -89,6 +91,7 @@ listxattr: no
removexattr: yes
fiemap: no
update_time: no
+atomic_open: yes
Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_mutex on
victim.