diff options
author | Marco Stornelli <marco.stornelli@gmail.com> | 2012-12-15 06:00:38 -0500 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 18:47:08 -0500 |
commit | b9f61c3c0c8daed9844870bc9358e6d9fdb7eb61 (patch) | |
tree | 7c5be784012a40186316c78ee85dacea354d3c87 /Documentation/filesystems | |
parent | 7898575fc81bd707ce0844cb06874d48e39bbe09 (diff) |
documentation: drop vmtruncate
Removed vmtruncate
Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r-- | Documentation/filesystems/Locking | 6 | ||||
-rw-r--r-- | Documentation/filesystems/porting | 2 | ||||
-rw-r--r-- | Documentation/filesystems/vfs.txt | 11 |
3 files changed, 1 insertions, 18 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index e540a24e5d06..f48e0c6b4c42 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking | |||
@@ -80,7 +80,6 @@ rename: yes (all) (see below) | |||
80 | readlink: no | 80 | readlink: no |
81 | follow_link: no | 81 | follow_link: no |
82 | put_link: no | 82 | put_link: no |
83 | truncate: yes (see below) | ||
84 | setattr: yes | 83 | setattr: yes |
85 | permission: no (may not block if called in rcu-walk mode) | 84 | permission: no (may not block if called in rcu-walk mode) |
86 | get_acl: no | 85 | get_acl: no |
@@ -96,11 +95,6 @@ atomic_open: yes | |||
96 | Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_mutex on | 95 | Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_mutex on |
97 | victim. | 96 | victim. |
98 | cross-directory ->rename() has (per-superblock) ->s_vfs_rename_sem. | 97 | cross-directory ->rename() has (per-superblock) ->s_vfs_rename_sem. |
99 | ->truncate() is never called directly - it's a callback, not a | ||
100 | method. It's called by vmtruncate() - deprecated library function used by | ||
101 | ->setattr(). Locking information above applies to that call (i.e. is | ||
102 | inherited from ->setattr() - vmtruncate() is used when ATTR_SIZE had been | ||
103 | passed). | ||
104 | 98 | ||
105 | See Documentation/filesystems/directory-locking for more detailed discussion | 99 | See Documentation/filesystems/directory-locking for more detailed discussion |
106 | of the locking scheme for directory operations. | 100 | of the locking scheme for directory operations. |
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index 0742feebc6e2..0472c31c163b 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting | |||
@@ -281,7 +281,7 @@ ext2_write_failed and callers for an example. | |||
281 | 281 | ||
282 | [mandatory] | 282 | [mandatory] |
283 | 283 | ||
284 | ->truncate is going away. The whole truncate sequence needs to be | 284 | ->truncate is gone. The whole truncate sequence needs to be |
285 | implemented in ->setattr, which is now mandatory for filesystems | 285 | implemented in ->setattr, which is now mandatory for filesystems |
286 | implementing on-disk size changes. Start with a copy of the old inode_setattr | 286 | implementing on-disk size changes. Start with a copy of the old inode_setattr |
287 | and vmtruncate, and the reorder the vmtruncate + foofs_vmtruncate sequence to | 287 | and vmtruncate, and the reorder the vmtruncate + foofs_vmtruncate sequence to |
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index 2ee133e030c3..e3869098163e 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt | |||
@@ -350,7 +350,6 @@ struct inode_operations { | |||
350 | int (*readlink) (struct dentry *, char __user *,int); | 350 | int (*readlink) (struct dentry *, char __user *,int); |
351 | void * (*follow_link) (struct dentry *, struct nameidata *); | 351 | void * (*follow_link) (struct dentry *, struct nameidata *); |
352 | void (*put_link) (struct dentry *, struct nameidata *, void *); | 352 | void (*put_link) (struct dentry *, struct nameidata *, void *); |
353 | void (*truncate) (struct inode *); | ||
354 | int (*permission) (struct inode *, int); | 353 | int (*permission) (struct inode *, int); |
355 | int (*get_acl)(struct inode *, int); | 354 | int (*get_acl)(struct inode *, int); |
356 | int (*setattr) (struct dentry *, struct iattr *); | 355 | int (*setattr) (struct dentry *, struct iattr *); |
@@ -431,16 +430,6 @@ otherwise noted. | |||
431 | started might not be in the page cache at the end of the | 430 | started might not be in the page cache at the end of the |
432 | walk). | 431 | walk). |
433 | 432 | ||
434 | truncate: Deprecated. This will not be called if ->setsize is defined. | ||
435 | Called by the VFS to change the size of a file. The | ||
436 | i_size field of the inode is set to the desired size by the | ||
437 | VFS before this method is called. This method is called by | ||
438 | the truncate(2) system call and related functionality. | ||
439 | |||
440 | Note: ->truncate and vmtruncate are deprecated. Do not add new | ||
441 | instances/calls of these. Filesystems should be converted to do their | ||
442 | truncate sequence via ->setattr(). | ||
443 | |||
444 | permission: called by the VFS to check for access rights on a POSIX-like | 433 | permission: called by the VFS to check for access rights on a POSIX-like |
445 | filesystem. | 434 | filesystem. |
446 | 435 | ||