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| author | Theodore Ts'o <tytso@mit.edu> | 2017-02-05 01:28:48 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2017-02-05 01:28:48 -0500 |
| commit | 0db1ff222d40f1601c961f0edb86d10426992595 (patch) | |
| tree | 74c6613fb9f3fba41ff3fc90e0db69d9df20490c /fs/ext4/namei.c | |
| parent | 9549a168bd500db1a76914e50775f7cd1690acef (diff) | |
| download | linux-0db1ff222d40f1601c961f0edb86d10426992595.tar.gz linux-0db1ff222d40f1601c961f0edb86d10426992595.tar.bz2 linux-0db1ff222d40f1601c961f0edb86d10426992595.zip | |
ext4: add shutdown bit and check for it
Add a shutdown bit that will cause ext4 processing to fail immediately
with EIO.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/namei.c')
| -rw-r--r-- | fs/ext4/namei.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 931da9d5d915..6ad612c576fc 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -2939,6 +2939,9 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry) struct ext4_dir_entry_2 *de; handle_t *handle = NULL; + if (unlikely(ext4_forced_shutdown(EXT4_SB(dir->i_sb)))) + return -EIO; + /* Initialize quotas before so that eventual writes go in * separate transaction */ retval = dquot_initialize(dir); @@ -3012,6 +3015,9 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry) struct ext4_dir_entry_2 *de; handle_t *handle = NULL; + if (unlikely(ext4_forced_shutdown(EXT4_SB(dir->i_sb)))) + return -EIO; + trace_ext4_unlink_enter(dir, dentry); /* Initialize quotas before so that eventual writes go * in separate transaction */ @@ -3082,6 +3088,9 @@ static int ext4_symlink(struct inode *dir, struct fscrypt_str disk_link; struct fscrypt_symlink_data *sd = NULL; + if (unlikely(ext4_forced_shutdown(EXT4_SB(dir->i_sb)))) + return -EIO; + disk_link.len = len + 1; disk_link.name = (char *) symname; @@ -3874,6 +3883,9 @@ static int ext4_rename2(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry, unsigned int flags) { + if (unlikely(ext4_forced_shutdown(EXT4_SB(old_dir->i_sb)))) + return -EIO; + if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT)) return -EINVAL; |