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Diffstat (limited to 'fs/gfs2/file.c')
-rw-r--r--fs/gfs2/file.c75
1 files changed, 25 insertions, 50 deletions
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 2d500f90cdac..a0b542d84cd9 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -25,6 +25,7 @@
#include <linux/dlm_plock.h>
#include <linux/delay.h>
#include <linux/backing-dev.h>
+#include <linux/fileattr.h>
#include "gfs2.h"
#include "incore.h"
@@ -118,8 +119,8 @@ static int gfs2_readdir(struct file *file, struct dir_context *ctx)
return error;
}
-/**
- * fsflag_gfs2flag
+/*
+ * struct fsflag_gfs2flag
*
* The FS_JOURNAL_DATA_FL flag maps to GFS2_DIF_INHERIT_JDATA for directories,
* and to GFS2_DIF_JDATA for non-directories.
@@ -153,14 +154,17 @@ static inline u32 gfs2_gfsflags_to_fsflags(struct inode *inode, u32 gfsflags)
return fsflags;
}
-static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
+int gfs2_fileattr_get(struct dentry *dentry, struct fileattr *fa)
{
- struct inode *inode = file_inode(filp);
+ struct inode *inode = d_inode(dentry);
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder gh;
int error;
u32 fsflags;
+ if (d_is_special(dentry))
+ return -ENOTTY;
+
gfs2_holder_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
error = gfs2_glock_nq(&gh);
if (error)
@@ -168,8 +172,7 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
fsflags = gfs2_gfsflags_to_fsflags(inode, ip->i_diskflags);
- if (put_user(fsflags, ptr))
- error = -EFAULT;
+ fileattr_fill_flags(fa, fsflags);
gfs2_glock_dq(&gh);
out_uninit:
@@ -213,33 +216,19 @@ void gfs2_set_inode_flags(struct inode *inode)
* @fsflags: The FS_* inode flags passed in
*
*/
-static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask,
+static int do_gfs2_set_flags(struct inode *inode, u32 reqflags, u32 mask,
const u32 fsflags)
{
- struct inode *inode = file_inode(filp);
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_sbd *sdp = GFS2_SB(inode);
struct buffer_head *bh;
struct gfs2_holder gh;
int error;
- u32 new_flags, flags, oldflags;
-
- error = mnt_want_write_file(filp);
- if (error)
- return error;
+ u32 new_flags, flags;
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
if (error)
- goto out_drop_write;
-
- oldflags = gfs2_gfsflags_to_fsflags(inode, ip->i_diskflags);
- error = vfs_ioc_setflags_prepare(inode, oldflags, fsflags);
- if (error)
- goto out;
-
- error = -EACCES;
- if (!inode_owner_or_capable(&init_user_ns, inode))
- goto out;
+ return error;
error = 0;
flags = ip->i_diskflags;
@@ -252,9 +241,6 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask,
goto out;
if (IS_APPEND(inode) && (new_flags & GFS2_DIF_APPENDONLY))
goto out;
- if (((new_flags ^ flags) & GFS2_DIF_IMMUTABLE) &&
- !capable(CAP_LINUX_IMMUTABLE))
- goto out;
if (!IS_IMMUTABLE(inode)) {
error = gfs2_permission(&init_user_ns, inode, MAY_WRITE);
if (error)
@@ -291,20 +277,22 @@ out_trans_end:
gfs2_trans_end(sdp);
out:
gfs2_glock_dq_uninit(&gh);
-out_drop_write:
- mnt_drop_write_file(filp);
return error;
}
-static int gfs2_set_flags(struct file *filp, u32 __user *ptr)
+int gfs2_fileattr_set(struct user_namespace *mnt_userns,
+ struct dentry *dentry, struct fileattr *fa)
{
- struct inode *inode = file_inode(filp);
- u32 fsflags, gfsflags = 0;
+ struct inode *inode = d_inode(dentry);
+ u32 fsflags = fa->flags, gfsflags = 0;
u32 mask;
int i;
- if (get_user(fsflags, ptr))
- return -EFAULT;
+ if (d_is_special(dentry))
+ return -ENOTTY;
+
+ if (fileattr_has_fsx(fa))
+ return -EOPNOTSUPP;
for (i = 0; i < ARRAY_SIZE(fsflag_gfs2flag); i++) {
if (fsflags & fsflag_gfs2flag[i].fsflag) {
@@ -325,7 +313,7 @@ static int gfs2_set_flags(struct file *filp, u32 __user *ptr)
mask &= ~(GFS2_DIF_TOPDIR | GFS2_DIF_INHERIT_JDATA);
}
- return do_gfs2_set_flags(filp, gfsflags, mask, fsflags);
+ return do_gfs2_set_flags(inode, gfsflags, mask, fsflags);
}
static int gfs2_getlabel(struct file *filp, char __user *label)
@@ -342,10 +330,6 @@ static int gfs2_getlabel(struct file *filp, char __user *label)
static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
switch(cmd) {
- case FS_IOC_GETFLAGS:
- return gfs2_get_flags(filp, (u32 __user *)arg);
- case FS_IOC_SETFLAGS:
- return gfs2_set_flags(filp, (u32 __user *)arg);
case FITRIM:
return gfs2_fitrim(filp, (void __user *)arg);
case FS_IOC_GETFSLABEL:
@@ -359,13 +343,6 @@ static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
static long gfs2_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
switch(cmd) {
- /* These are just misnamed, they actually get/put from/to user an int */
- case FS_IOC32_GETFLAGS:
- cmd = FS_IOC_GETFLAGS;
- break;
- case FS_IOC32_SETFLAGS:
- cmd = FS_IOC_SETFLAGS;
- break;
/* Keep this list in sync with gfs2_ioctl */
case FITRIM:
case FS_IOC_GETFSLABEL:
@@ -421,7 +398,7 @@ static int gfs2_allocate_page_backing(struct page *page, unsigned int length)
do {
struct iomap iomap = { };
- if (gfs2_iomap_get_alloc(page->mapping->host, pos, length, &iomap))
+ if (gfs2_iomap_alloc(page->mapping->host, pos, length, &iomap))
return -EIO;
if (length < iomap.length)
@@ -435,7 +412,6 @@ static int gfs2_allocate_page_backing(struct page *page, unsigned int length)
/**
* gfs2_page_mkwrite - Make a shared, mmap()ed, page writable
- * @vma: The virtual memory area
* @vmf: The virtual memory fault containing the page to become writable
*
* When the page becomes writable, we need to ensure that we have
@@ -586,7 +562,7 @@ static const struct vm_operations_struct gfs2_vm_ops = {
};
/**
- * gfs2_mmap -
+ * gfs2_mmap
* @file: The file to map
* @vma: The VMA which described the mapping
*
@@ -991,8 +967,7 @@ static int fallocate_chunk(struct inode *inode, loff_t offset, loff_t len,
while (offset < end) {
struct iomap iomap = { };
- error = gfs2_iomap_get_alloc(inode, offset, end - offset,
- &iomap);
+ error = gfs2_iomap_alloc(inode, offset, end - offset, &iomap);
if (error)
goto out;
offset = iomap.offset + iomap.length;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 13:33:14 +0000