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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-10 11:26:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-10 11:26:52 -0700
commit5f248c9c251c60af3403902b26e08de43964ea0b (patch)
tree6d3328e72a7e4015a64017eb30be18095c6a3c64 /fs/proc
parentf6cec0ae58c17522a7bc4e2f39dae19f199ab534 (diff)
parentdca332528bc69e05f67161e1ed59929633d5e63d (diff)
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (96 commits) no need for list_for_each_entry_safe()/resetting with superblock list Fix sget() race with failing mount vfs: don't hold s_umount over close_bdev_exclusive() call sysv: do not mark superblock dirty on remount sysv: do not mark superblock dirty on mount btrfs: remove junk sb_dirt change BFS: clean up the superblock usage AFFS: wait for sb synchronization when needed AFFS: clean up dirty flag usage cifs: truncate fallout mbcache: fix shrinker function return value mbcache: Remove unused features add f_flags to struct statfs(64) pass a struct path to vfs_statfs update VFS documentation for method changes. All filesystems that need invalidate_inode_buffers() are doing that explicitly convert remaining ->clear_inode() to ->evict_inode() Make ->drop_inode() just return whether inode needs to be dropped fs/inode.c:clear_inode() is gone fs/inode.c:evict() doesn't care about delete vs. non-delete paths now ... Fix up trivial conflicts in fs/nilfs2/super.c
Diffstat (limited to 'fs/proc')
-rw-r--r--fs/proc/base.c16
-rw-r--r--fs/proc/generic.c18
-rw-r--r--fs/proc/inode.c6
-rw-r--r--fs/proc/proc_sysctl.c15
4 files changed, 40 insertions, 15 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 69254a3..c806dfb 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -559,9 +559,19 @@ static int proc_setattr(struct dentry *dentry, struct iattr *attr)
return -EPERM;
error = inode_change_ok(inode, attr);
- if (!error)
- error = inode_setattr(inode, attr);
- return error;
+ if (error)
+ return error;
+
+ if ((attr->ia_valid & ATTR_SIZE) &&
+ attr->ia_size != i_size_read(inode)) {
+ error = vmtruncate(inode, attr->ia_size);
+ if (error)
+ return error;
+ }
+
+ setattr_copy(inode, attr);
+ mark_inode_dirty(inode);
+ return 0;
}
static const struct inode_operations proc_def_inode_operations = {
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 2791907..dd29f03 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -12,6 +12,7 @@
#include <linux/time.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>
+#include <linux/mm.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/mount.h>
@@ -258,17 +259,22 @@ static int proc_notify_change(struct dentry *dentry, struct iattr *iattr)
error = inode_change_ok(inode, iattr);
if (error)
- goto out;
+ return error;
- error = inode_setattr(inode, iattr);
- if (error)
- goto out;
+ if ((iattr->ia_valid & ATTR_SIZE) &&
+ iattr->ia_size != i_size_read(inode)) {
+ error = vmtruncate(inode, iattr->ia_size);
+ if (error)
+ return error;
+ }
+
+ setattr_copy(inode, iattr);
+ mark_inode_dirty(inode);
de->uid = inode->i_uid;
de->gid = inode->i_gid;
de->mode = inode->i_mode;
-out:
- return error;
+ return 0;
}
static int proc_getattr(struct vfsmount *mnt, struct dentry *dentry,
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index aea8502..23561cd 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -25,11 +25,12 @@
#include "internal.h"
-static void proc_delete_inode(struct inode *inode)
+static void proc_evict_inode(struct inode *inode)
{
struct proc_dir_entry *de;
truncate_inode_pages(&inode->i_data, 0);
+ end_writeback(inode);
/* Stop tracking associated processes */
put_pid(PROC_I(inode)->pid);
@@ -40,7 +41,6 @@ static void proc_delete_inode(struct inode *inode)
pde_put(de);
if (PROC_I(inode)->sysctl)
sysctl_head_put(PROC_I(inode)->sysctl);
- clear_inode(inode);
}
struct vfsmount *proc_mnt;
@@ -91,7 +91,7 @@ static const struct super_operations proc_sops = {
.alloc_inode = proc_alloc_inode,
.destroy_inode = proc_destroy_inode,
.drop_inode = generic_delete_inode,
- .delete_inode = proc_delete_inode,
+ .evict_inode = proc_evict_inode,
.statfs = simple_statfs,
};
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 6ff9981..5be436e 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -329,10 +329,19 @@ static int proc_sys_setattr(struct dentry *dentry, struct iattr *attr)
return -EPERM;
error = inode_change_ok(inode, attr);
- if (!error)
- error = inode_setattr(inode, attr);
+ if (error)
+ return error;
+
+ if ((attr->ia_valid & ATTR_SIZE) &&
+ attr->ia_size != i_size_read(inode)) {
+ error = vmtruncate(inode, attr->ia_size);
+ if (error)
+ return error;
+ }
- return error;
+ setattr_copy(inode, attr);
+ mark_inode_dirty(inode);
+ return 0;
}
static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)