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Diffstat (limited to 'fs/vfat')
-rw-r--r--fs/vfat/namei.c35
1 files changed, 19 insertions, 16 deletions
diff --git a/fs/vfat/namei.c b/fs/vfat/namei.c
index a3522727ea5..b546ba69be8 100644
--- a/fs/vfat/namei.c
+++ b/fs/vfat/namei.c
@@ -645,7 +645,7 @@ static int vfat_add_entry(struct inode *dir, struct qstr *qname, int is_dir,
if (len == 0)
return -ENOENT;
- slots = kmalloc(sizeof(*slots) * MSDOS_SLOTS, GFP_KERNEL);
+ slots = kmalloc(sizeof(*slots) * MSDOS_SLOTS, GFP_NOFS);
if (slots == NULL)
return -ENOMEM;
@@ -687,7 +687,7 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
struct dentry *alias;
int err, table;
- lock_kernel();
+ lock_super(sb);
table = (MSDOS_SB(sb)->options.name_check == 's') ? 2 : 0;
dentry->d_op = &vfat_dentry_ops[table];
@@ -699,7 +699,7 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos);
brelse(sinfo.bh);
if (IS_ERR(inode)) {
- unlock_kernel();
+ unlock_super(sb);
return ERR_CAST(inode);
}
alias = d_find_alias(inode);
@@ -708,13 +708,13 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
dput(alias);
else {
iput(inode);
- unlock_kernel();
+ unlock_super(sb);
return alias;
}
}
error:
- unlock_kernel();
+ unlock_super(sb);
dentry->d_op = &vfat_dentry_ops[table];
dentry->d_time = dentry->d_parent->d_inode->i_version;
dentry = d_splice_alias(inode, dentry);
@@ -734,7 +734,7 @@ static int vfat_create(struct inode *dir, struct dentry *dentry, int mode,
struct timespec ts;
int err;
- lock_kernel();
+ lock_super(sb);
ts = CURRENT_TIME_SEC;
err = vfat_add_entry(dir, &dentry->d_name, 0, 0, &ts, &sinfo);
@@ -755,17 +755,18 @@ static int vfat_create(struct inode *dir, struct dentry *dentry, int mode,
dentry->d_time = dentry->d_parent->d_inode->i_version;
d_instantiate(dentry, inode);
out:
- unlock_kernel();
+ unlock_super(sb);
return err;
}
static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
+ struct super_block *sb = dir->i_sb;
struct fat_slot_info sinfo;
int err;
- lock_kernel();
+ lock_super(sb);
err = fat_dir_empty(inode);
if (err)
@@ -783,7 +784,7 @@ static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
fat_detach(inode);
out:
- unlock_kernel();
+ unlock_super(sb);
return err;
}
@@ -791,10 +792,11 @@ out:
static int vfat_unlink(struct inode *dir, struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
+ struct super_block *sb = dir->i_sb;
struct fat_slot_info sinfo;
int err;
- lock_kernel();
+ lock_super(sb);
err = vfat_find(dir, &dentry->d_name, &sinfo);
if (err)
@@ -807,7 +809,7 @@ static int vfat_unlink(struct inode *dir, struct dentry *dentry)
inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
fat_detach(inode);
out:
- unlock_kernel();
+ unlock_super(sb);
return err;
}
@@ -820,7 +822,7 @@ static int vfat_mkdir(struct inode *dir, struct dentry *dentry, int mode)
struct timespec ts;
int err, cluster;
- lock_kernel();
+ lock_super(sb);
ts = CURRENT_TIME_SEC;
cluster = fat_alloc_new_dir(dir, &ts);
@@ -849,13 +851,13 @@ static int vfat_mkdir(struct inode *dir, struct dentry *dentry, int mode)
dentry->d_time = dentry->d_parent->d_inode->i_version;
d_instantiate(dentry, inode);
- unlock_kernel();
+ unlock_super(sb);
return 0;
out_free:
fat_free_clusters(dir, cluster);
out:
- unlock_kernel();
+ unlock_super(sb);
return err;
}
@@ -869,11 +871,12 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
struct timespec ts;
loff_t dotdot_i_pos, new_i_pos;
int err, is_dir, update_dotdot, corrupt = 0;
+ struct super_block *sb = old_dir->i_sb;
old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
old_inode = old_dentry->d_inode;
new_inode = new_dentry->d_inode;
- lock_kernel();
+ lock_super(sb);
err = vfat_find(old_dir, &old_dentry->d_name, &old_sinfo);
if (err)
goto out;
@@ -951,7 +954,7 @@ out:
brelse(sinfo.bh);
brelse(dotdot_bh);
brelse(old_sinfo.bh);
- unlock_kernel();
+ unlock_super(sb);
return err;