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-rw-r--r--fs/affs/affs.h3
-rw-r--r--fs/affs/file.c15
-rw-r--r--fs/affs/inode.c40
-rw-r--r--fs/affs/super.c59
4 files changed, 59 insertions, 58 deletions
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index f05b6155ccc8..a8cbdeb34025 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -171,8 +171,7 @@ extern int affs_rename(struct inode *old_dir, struct dentry *old_dentry,
extern unsigned long affs_parent_ino(struct inode *dir);
extern struct inode *affs_new_inode(struct inode *dir);
extern int affs_notify_change(struct dentry *dentry, struct iattr *attr);
-extern void affs_delete_inode(struct inode *inode);
-extern void affs_clear_inode(struct inode *inode);
+extern void affs_evict_inode(struct inode *inode);
extern struct inode *affs_iget(struct super_block *sb,
unsigned long ino);
extern int affs_write_inode(struct inode *inode,
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 322710c3eedf..0a90dcd46de2 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -406,10 +406,19 @@ static int affs_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
{
+ int ret;
+
*pagep = NULL;
- return cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
+ ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
affs_get_block,
&AFFS_I(mapping->host)->mmu_private);
+ if (unlikely(ret)) {
+ loff_t isize = mapping->host->i_size;
+ if (pos + len > isize)
+ vmtruncate(mapping->host, isize);
+ }
+
+ return ret;
}
static sector_t _affs_bmap(struct address_space *mapping, sector_t block)
@@ -885,9 +894,9 @@ affs_truncate(struct inode *inode)
if (AFFS_SB(sb)->s_flags & SF_OFS) {
struct buffer_head *bh = affs_bread_ino(inode, last_blk, 0);
u32 tmp;
- if (IS_ERR(ext_bh)) {
+ if (IS_ERR(bh)) {
affs_warning(sb, "truncate", "unexpected read error for last block %u (%d)",
- ext, PTR_ERR(ext_bh));
+ ext, PTR_ERR(bh));
return;
}
tmp = be32_to_cpu(AFFS_DATA_HEAD(bh)->next);
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index f4b2a4ee4f91..5d828903ac69 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -235,31 +235,36 @@ affs_notify_change(struct dentry *dentry, struct iattr *attr)
goto out;
}
- error = inode_setattr(inode, attr);
- if (!error && (attr->ia_valid & ATTR_MODE))
+ 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);
+
+ if (attr->ia_valid & ATTR_MODE)
mode_to_prot(inode);
out:
return error;
}
void
-affs_delete_inode(struct inode *inode)
-{
- pr_debug("AFFS: delete_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
- truncate_inode_pages(&inode->i_data, 0);
- inode->i_size = 0;
- affs_truncate(inode);
- clear_inode(inode);
- affs_free_block(inode->i_sb, inode->i_ino);
-}
-
-void
-affs_clear_inode(struct inode *inode)
+affs_evict_inode(struct inode *inode)
{
unsigned long cache_page;
+ pr_debug("AFFS: evict_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
+ truncate_inode_pages(&inode->i_data, 0);
- pr_debug("AFFS: clear_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink);
+ if (!inode->i_nlink) {
+ inode->i_size = 0;
+ affs_truncate(inode);
+ }
+ invalidate_inode_buffers(inode);
+ end_writeback(inode);
affs_free_prealloc(inode);
cache_page = (unsigned long)AFFS_I(inode)->i_lc;
if (cache_page) {
@@ -271,6 +276,9 @@ affs_clear_inode(struct inode *inode)
affs_brelse(AFFS_I(inode)->i_ext_bh);
AFFS_I(inode)->i_ext_last = ~1;
AFFS_I(inode)->i_ext_bh = NULL;
+
+ if (!inode->i_nlink)
+ affs_free_block(inode->i_sb, inode->i_ino);
}
struct inode *
@@ -380,7 +388,7 @@ affs_add_entry(struct inode *dir, struct inode *inode, struct dentry *dentry, s3
affs_adjust_checksum(inode_bh, block - be32_to_cpu(chain));
mark_buffer_dirty_inode(inode_bh, inode);
inode->i_nlink = 2;
- atomic_inc(&inode->i_count);
+ ihold(inode);
}
affs_fix_checksum(sb, bh);
mark_buffer_dirty_inode(bh, inode);
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 16a3e4765f68..0cf7f4384cbd 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -16,7 +16,6 @@
#include <linux/parser.h>
#include <linux/magic.h>
#include <linux/sched.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
#include "affs.h"
@@ -26,7 +25,7 @@ static int affs_statfs(struct dentry *dentry, struct kstatfs *buf);
static int affs_remount (struct super_block *sb, int *flags, char *data);
static void
-affs_commit_super(struct super_block *sb, int clean)
+affs_commit_super(struct super_block *sb, int wait, int clean)
{
struct affs_sb_info *sbi = AFFS_SB(sb);
struct buffer_head *bh = sbi->s_root_bh;
@@ -36,6 +35,8 @@ affs_commit_super(struct super_block *sb, int clean)
secs_to_datestamp(get_seconds(), &tail->disk_change);
affs_fix_checksum(sb, bh);
mark_buffer_dirty(bh);
+ if (wait)
+ sync_dirty_buffer(bh);
}
static void
@@ -44,44 +45,33 @@ affs_put_super(struct super_block *sb)
struct affs_sb_info *sbi = AFFS_SB(sb);
pr_debug("AFFS: put_super()\n");
- lock_kernel();
-
- if (!(sb->s_flags & MS_RDONLY))
- affs_commit_super(sb, 1);
+ if (!(sb->s_flags & MS_RDONLY) && sb->s_dirt)
+ affs_commit_super(sb, 1, 1);
kfree(sbi->s_prefix);
affs_free_bitmap(sb);
affs_brelse(sbi->s_root_bh);
kfree(sbi);
sb->s_fs_info = NULL;
-
- unlock_kernel();
}
static void
affs_write_super(struct super_block *sb)
{
- int clean = 2;
-
lock_super(sb);
- if (!(sb->s_flags & MS_RDONLY)) {
- // if (sbi->s_bitmap[i].bm_bh) {
- // if (buffer_dirty(sbi->s_bitmap[i].bm_bh)) {
- // clean = 0;
- affs_commit_super(sb, clean);
- sb->s_dirt = !clean; /* redo until bitmap synced */
- } else
- sb->s_dirt = 0;
+ if (!(sb->s_flags & MS_RDONLY))
+ affs_commit_super(sb, 1, 2);
+ sb->s_dirt = 0;
unlock_super(sb);
- pr_debug("AFFS: write_super() at %lu, clean=%d\n", get_seconds(), clean);
+ pr_debug("AFFS: write_super() at %lu, clean=2\n", get_seconds());
}
static int
affs_sync_fs(struct super_block *sb, int wait)
{
lock_super(sb);
- affs_commit_super(sb, 2);
+ affs_commit_super(sb, wait, 2);
sb->s_dirt = 0;
unlock_super(sb);
return 0;
@@ -114,8 +104,8 @@ static void init_once(void *foo)
{
struct affs_inode_info *ei = (struct affs_inode_info *) foo;
- init_MUTEX(&ei->i_link_lock);
- init_MUTEX(&ei->i_ext_lock);
+ sema_init(&ei->i_link_lock, 1);
+ sema_init(&ei->i_ext_lock, 1);
inode_init_once(&ei->vfs_inode);
}
@@ -140,8 +130,7 @@ static const struct super_operations affs_sops = {
.alloc_inode = affs_alloc_inode,
.destroy_inode = affs_destroy_inode,
.write_inode = affs_write_inode,
- .delete_inode = affs_delete_inode,
- .clear_inode = affs_clear_inode,
+ .evict_inode = affs_evict_inode,
.put_super = affs_put_super,
.write_super = affs_write_super,
.sync_fs = affs_sync_fs,
@@ -308,6 +297,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
sbi = kzalloc(sizeof(struct affs_sb_info), GFP_KERNEL);
if (!sbi)
return -ENOMEM;
+
sb->s_fs_info = sbi;
mutex_init(&sbi->s_bmlock);
spin_lock_init(&sbi->symlink_lock);
@@ -533,7 +523,7 @@ affs_remount(struct super_block *sb, int *flags, char *data)
kfree(new_opts);
return -EINVAL;
}
- lock_kernel();
+
replace_mount_options(sb, new_opts);
sbi->s_flags = mount_flags;
@@ -549,19 +539,15 @@ affs_remount(struct super_block *sb, int *flags, char *data)
memcpy(sbi->s_volume, volume, 32);
spin_unlock(&sbi->symlink_lock);
- if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
- unlock_kernel();
+ if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
return 0;
- }
+
if (*flags & MS_RDONLY) {
- sb->s_dirt = 1;
- while (sb->s_dirt)
- affs_write_super(sb);
+ affs_write_super(sb);
affs_free_bitmap(sb);
} else
res = affs_init_bitmap(sb, flags);
- unlock_kernel();
return res;
}
@@ -587,17 +573,16 @@ affs_statfs(struct dentry *dentry, struct kstatfs *buf)
return 0;
}
-static int affs_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *affs_mount(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data)
{
- return get_sb_bdev(fs_type, flags, dev_name, data, affs_fill_super,
- mnt);
+ return mount_bdev(fs_type, flags, dev_name, data, affs_fill_super);
}
static struct file_system_type affs_fs_type = {
.owner = THIS_MODULE,
.name = "affs",
- .get_sb = affs_get_sb,
+ .mount = affs_mount,
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-07 04:52:08 +0300