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-rw-r--r--fs/ufs/balloc.c34
-rw-r--r--fs/ufs/ialloc.c16
-rw-r--r--fs/ufs/inode.c5
-rw-r--r--fs/ufs/namei.c22
-rw-r--r--fs/ufs/super.c11
-rw-r--r--fs/ufs/ufs.h1
6 files changed, 56 insertions, 33 deletions
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index 2c1036080d52..a7106eda5024 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -51,8 +51,8 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
if (ufs_fragnum(fragment) + count > uspi->s_fpg)
ufs_error (sb, "ufs_free_fragments", "internal error");
-
- lock_ufs(sb);
+
+ mutex_lock(&UFS_SB(sb)->s_lock);
cgno = ufs_dtog(uspi, fragment);
bit = ufs_dtogd(uspi, fragment);
@@ -115,13 +115,13 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
if (sb->s_flags & MS_SYNCHRONOUS)
ubh_sync_block(UCPI_UBH(ucpi));
ufs_mark_sb_dirty(sb);
-
- unlock_ufs(sb);
+
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT\n");
return;
failed:
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT (FAILED)\n");
return;
}
@@ -151,7 +151,7 @@ void ufs_free_blocks(struct inode *inode, u64 fragment, unsigned count)
goto failed;
}
- lock_ufs(sb);
+ mutex_lock(&UFS_SB(sb)->s_lock);
do_more:
overflow = 0;
@@ -211,12 +211,12 @@ do_more:
}
ufs_mark_sb_dirty(sb);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT\n");
return;
failed_unlock:
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
failed:
UFSD("EXIT (FAILED)\n");
return;
@@ -357,7 +357,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
usb1 = ubh_get_usb_first(uspi);
*err = -ENOSPC;
- lock_ufs(sb);
+ mutex_lock(&UFS_SB(sb)->s_lock);
tmp = ufs_data_ptr_to_cpu(sb, p);
if (count + ufs_fragnum(fragment) > uspi->s_fpb) {
@@ -378,19 +378,19 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
"fragment %llu, tmp %llu\n",
(unsigned long long)fragment,
(unsigned long long)tmp);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
return INVBLOCK;
}
if (fragment < UFS_I(inode)->i_lastfrag) {
UFSD("EXIT (ALREADY ALLOCATED)\n");
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
return 0;
}
}
else {
if (tmp) {
UFSD("EXIT (ALREADY ALLOCATED)\n");
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
return 0;
}
}
@@ -399,7 +399,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
* There is not enough space for user on the device
*/
if (!capable(CAP_SYS_RESOURCE) && ufs_freespace(uspi, UFS_MINFREE) <= 0) {
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT (FAILED)\n");
return 0;
}
@@ -424,7 +424,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
ufs_clear_frags(inode, result + oldcount,
newcount - oldcount, locked_page != NULL);
}
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@@ -439,7 +439,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
fragment + count);
ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
locked_page != NULL);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@@ -477,7 +477,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
*err = 0;
UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag,
fragment + count);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
if (newcount < request)
ufs_free_fragments (inode, result + newcount, request - newcount);
ufs_free_fragments (inode, tmp, oldcount);
@@ -485,7 +485,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
return result;
}
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT (FAILED)\n");
return 0;
}
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index 7caa01652888..fd0203ce1f7f 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -69,11 +69,11 @@ void ufs_free_inode (struct inode * inode)
ino = inode->i_ino;
- lock_ufs(sb);
+ mutex_lock(&UFS_SB(sb)->s_lock);
if (!((ino > 1) && (ino < (uspi->s_ncg * uspi->s_ipg )))) {
ufs_warning(sb, "ufs_free_inode", "reserved inode or nonexistent inode %u\n", ino);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
return;
}
@@ -81,7 +81,7 @@ void ufs_free_inode (struct inode * inode)
bit = ufs_inotocgoff (ino);
ucpi = ufs_load_cylinder (sb, cg);
if (!ucpi) {
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
return;
}
ucg = ubh_get_ucg(UCPI_UBH(ucpi));
@@ -115,7 +115,7 @@ void ufs_free_inode (struct inode * inode)
ubh_sync_block(UCPI_UBH(ucpi));
ufs_mark_sb_dirty(sb);
- unlock_ufs(sb);
+ mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT\n");
}
@@ -193,7 +193,7 @@ struct inode *ufs_new_inode(struct inode *dir, umode_t mode)
sbi = UFS_SB(sb);
uspi = sbi->s_uspi;
- lock_ufs(sb);
+ mutex_lock(&sbi->s_lock);
/*
* Try to place the inode in its parent directory
@@ -331,21 +331,21 @@ cg_found:
sync_dirty_buffer(bh);
brelse(bh);
}
- unlock_ufs(sb);
+ mutex_unlock(&sbi->s_lock);
UFSD("allocating inode %lu\n", inode->i_ino);
UFSD("EXIT\n");
return inode;
fail_remove_inode:
- unlock_ufs(sb);
+ mutex_unlock(&sbi->s_lock);
clear_nlink(inode);
unlock_new_inode(inode);
iput(inode);
UFSD("EXIT (FAILED): err %d\n", err);
return ERR_PTR(err);
failed:
- unlock_ufs(sb);
+ mutex_unlock(&sbi->s_lock);
make_bad_inode(inode);
iput (inode);
UFSD("EXIT (FAILED): err %d\n", err);
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index be7d42c7d938..2d93ab07da8a 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -902,6 +902,9 @@ void ufs_evict_inode(struct inode * inode)
invalidate_inode_buffers(inode);
clear_inode(inode);
- if (want_delete)
+ if (want_delete) {
+ lock_ufs(inode->i_sb);
ufs_free_inode(inode);
+ unlock_ufs(inode->i_sb);
+ }
}
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index fd65deb4b5f0..e8ee2985b068 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -128,12 +128,12 @@ static int ufs_symlink (struct inode * dir, struct dentry * dentry,
if (l > sb->s_blocksize)
goto out_notlocked;
+ lock_ufs(dir->i_sb);
inode = ufs_new_inode(dir, S_IFLNK | S_IRWXUGO);
err = PTR_ERR(inode);
if (IS_ERR(inode))
- goto out_notlocked;
+ goto out;
- lock_ufs(dir->i_sb);
if (l > UFS_SB(sb)->s_uspi->s_maxsymlinklen) {
/* slow symlink */
inode->i_op = &ufs_symlink_inode_operations;
@@ -174,7 +174,12 @@ static int ufs_link (struct dentry * old_dentry, struct inode * dir,
inode_inc_link_count(inode);
ihold(inode);
- error = ufs_add_nondir(dentry, inode);
+ error = ufs_add_link(dentry, inode);
+ if (error) {
+ inode_dec_link_count(inode);
+ iput(inode);
+ } else
+ d_instantiate(dentry, inode);
unlock_ufs(dir->i_sb);
return error;
}
@@ -184,9 +189,13 @@ static int ufs_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
struct inode * inode;
int err;
+ lock_ufs(dir->i_sb);
+ inode_inc_link_count(dir);
+
inode = ufs_new_inode(dir, S_IFDIR|mode);
+ err = PTR_ERR(inode);
if (IS_ERR(inode))
- return PTR_ERR(inode);
+ goto out_dir;
inode->i_op = &ufs_dir_inode_operations;
inode->i_fop = &ufs_dir_operations;
@@ -194,9 +203,6 @@ static int ufs_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
inode_inc_link_count(inode);
- lock_ufs(dir->i_sb);
- inode_inc_link_count(dir);
-
err = ufs_make_empty(inode, dir);
if (err)
goto out_fail;
@@ -206,6 +212,7 @@ static int ufs_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
goto out_fail;
unlock_ufs(dir->i_sb);
+ unlock_new_inode(inode);
d_instantiate(dentry, inode);
out:
return err;
@@ -215,6 +222,7 @@ out_fail:
inode_dec_link_count(inode);
unlock_new_inode(inode);
iput (inode);
+out_dir:
inode_dec_link_count(dir);
unlock_ufs(dir->i_sb);
goto out;
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index da73801301d5..ce02dff5572f 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -698,6 +698,7 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
unsigned flags;
lock_ufs(sb);
+ mutex_lock(&UFS_SB(sb)->s_lock);
UFSD("ENTER\n");
@@ -715,6 +716,7 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
ufs_put_cstotal(sb);
UFSD("EXIT\n");
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
@@ -803,6 +805,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY));
mutex_init(&sbi->mutex);
+ mutex_init(&sbi->s_lock);
spin_lock_init(&sbi->work_lock);
INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs);
/*
@@ -1281,6 +1284,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
sync_filesystem(sb);
lock_ufs(sb);
+ mutex_lock(&UFS_SB(sb)->s_lock);
uspi = UFS_SB(sb)->s_uspi;
flags = UFS_SB(sb)->s_flags;
usb1 = ubh_get_usb_first(uspi);
@@ -1294,6 +1298,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
new_mount_opt = 0;
ufs_set_opt (new_mount_opt, ONERROR_LOCK);
if (!ufs_parse_options (data, &new_mount_opt)) {
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
@@ -1301,12 +1306,14 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
new_mount_opt |= ufstype;
} else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
pr_err("ufstype can't be changed during remount\n");
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
UFS_SB(sb)->s_mount_opt = new_mount_opt;
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
}
@@ -1330,6 +1337,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
*/
#ifndef CONFIG_UFS_FS_WRITE
pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n");
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
#else
@@ -1339,11 +1347,13 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
ufstype != UFS_MOUNT_UFSTYPE_SUNx86 &&
ufstype != UFS_MOUNT_UFSTYPE_UFS2) {
pr_err("this ufstype is read-only supported\n");
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
if (!ufs_read_cylinder_structures(sb)) {
pr_err("failed during remounting\n");
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EPERM;
}
@@ -1351,6 +1361,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
#endif
}
UFS_SB(sb)->s_mount_opt = new_mount_opt;
+ mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
}
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index 2a07396d5f9e..cf6368d42d4a 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -30,6 +30,7 @@ struct ufs_sb_info {
int work_queued; /* non-zero if the delayed work is queued */
struct delayed_work sync_work; /* FS sync delayed work */
spinlock_t work_lock; /* protects sync_work and work_queued */
+ struct mutex s_lock;
};
struct ufs_inode_info {
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-28 14:03:57 +0000