#define ext_debug(ino, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
+#define ASSERT(assert) \
+do { \
+ if (unlikely(!(assert))) { \
+ printk(KERN_EMERG \
+ "Assertion failure in %s() at %s:%d: '%s'\n", \
+ __func__, __FILE__, __LINE__, #assert); \
+ BUG(); \
+ } \
+} while (0)
+
/* data type for block offset of block group */
typedef int ext4_grpblk_t;
* protected by sbi->s_fc_lock.
*/
- /* Fast commit subtid when this inode was committed */
- unsigned int i_fc_committed_subtid;
-
/* Start of lblk range that needs to be committed in this fast commit */
ext4_lblk_t i_fc_lblk_start;
blocks */
#define EXT4_MOUNT2_HURD_COMPAT 0x00000004 /* Support HURD-castrated
file systems */
-#define EXT4_MOUNT2_DAX_NEVER 0x00000008 /* Do not allow Direct Access */
-#define EXT4_MOUNT2_DAX_INODE 0x00000010 /* For printing options only */
-
#define EXT4_MOUNT2_EXPLICIT_JOURNAL_CHECKSUM 0x00000008 /* User explicitly
specified journal checksum */
#define EXT4_MOUNT2_JOURNAL_FAST_COMMIT 0x00000010 /* Journal fast commit */
+#define EXT4_MOUNT2_DAX_NEVER 0x00000020 /* Do not allow Direct Access */
+#define EXT4_MOUNT2_DAX_INODE 0x00000040 /* For printing options only */
+
#define clear_opt(sb, opt) EXT4_SB(sb)->s_mount_opt &= \
~EXT4_MOUNT_##opt
#ifdef __KERNEL__
-/*
- * run-time mount flags
- */
-#define EXT4_MF_MNTDIR_SAMPLED 0x0001
-#define EXT4_MF_FS_ABORTED 0x0002 /* Fatal error detected */
-#define EXT4_MF_FC_INELIGIBLE 0x0004 /* Fast commit ineligible */
-#define EXT4_MF_FC_COMMITTING 0x0008 /* File system underoing a fast
- * commit.
- */
-
#ifdef CONFIG_FS_ENCRYPTION
#define DUMMY_ENCRYPTION_ENABLED(sbi) ((sbi)->s_dummy_enc_policy.policy != NULL)
#else
struct buffer_head * __rcu *s_group_desc;
unsigned int s_mount_opt;
unsigned int s_mount_opt2;
- unsigned int s_mount_flags;
+ unsigned long s_mount_flags;
unsigned int s_def_mount_opt;
ext4_fsblk_t s_sb_block;
atomic64_t s_resv_clusters;
errseq_t s_bdev_wb_err;
spinlock_t s_bdev_wb_lock;
+ /* Information about errors that happened during this mount */
+ spinlock_t s_error_lock;
+ int s_add_error_count;
+ int s_first_error_code;
+ __u32 s_first_error_line;
+ __u32 s_first_error_ino;
+ __u64 s_first_error_block;
+ const char *s_first_error_func;
+ time64_t s_first_error_time;
+ int s_last_error_code;
+ __u32 s_last_error_line;
+ __u32 s_last_error_ino;
+ __u64 s_last_error_block;
+ const char *s_last_error_func;
+ time64_t s_last_error_time;
+ /*
+ * If we are in a context where we cannot update error information in
+ * the on-disk superblock, we queue this work to do it.
+ */
+ struct work_struct s_error_work;
+
/* Ext4 fast commit stuff */
atomic_t s_fc_subtid;
atomic_t s_fc_ineligible_updates;
_v; \
})
+/*
+ * run-time mount flags
+ */
+enum {
+ EXT4_MF_MNTDIR_SAMPLED,
+ EXT4_MF_FS_ABORTED, /* Fatal error detected */
+ EXT4_MF_FC_INELIGIBLE, /* Fast commit ineligible */
+ EXT4_MF_FC_COMMITTING /* File system underoing a fast
+ * commit.
+ */
+};
+
+static inline void ext4_set_mount_flag(struct super_block *sb, int bit)
+{
+ set_bit(bit, &EXT4_SB(sb)->s_mount_flags);
+}
+
+static inline void ext4_clear_mount_flag(struct super_block *sb, int bit)
+{
+ clear_bit(bit, &EXT4_SB(sb)->s_mount_flags);
+}
+
+static inline int ext4_test_mount_flag(struct super_block *sb, int bit)
+{
+ return test_bit(bit, &EXT4_SB(sb)->s_mount_flags);
+}
+
+
/*
* Simulate_fail codes
*/
#define EXT4_GOOD_OLD_REV 0 /* The good old (original) format */
#define EXT4_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */
-#define EXT4_CURRENT_REV EXT4_GOOD_OLD_REV
#define EXT4_MAX_SUPP_REV EXT4_DYNAMIC_REV
#define EXT4_GOOD_OLD_INODE_SIZE 128
#define EXT4_FEATURE_COMPAT_RESIZE_INODE 0x0010
#define EXT4_FEATURE_COMPAT_DIR_INDEX 0x0020
#define EXT4_FEATURE_COMPAT_SPARSE_SUPER2 0x0200
+/*
+ * The reason why "FAST_COMMIT" is a compat feature is that, FS becomes
+ * incompatible only if fast commit blocks are present in the FS. Since we
+ * clear the journal (and thus the fast commit blocks), we don't mark FS as
+ * incompatible. We also have a JBD2 incompat feature, which gets set when
+ * there are fast commit blocks present in the journal.
+ */
#define EXT4_FEATURE_COMPAT_FAST_COMMIT 0x0400
#define EXT4_FEATURE_COMPAT_STABLE_INODES 0x0800
struct ext4_filename *fname);
static inline void ext4_update_dx_flag(struct inode *inode)
{
- if (!ext4_has_feature_dir_index(inode->i_sb)) {
+ if (!ext4_has_feature_dir_index(inode->i_sb) &&
+ ext4_test_inode_flag(inode, EXT4_INODE_INDEX)) {
/* ext4_iget() should have caught this... */
WARN_ON_ONCE(ext4_has_feature_metadata_csum(inode->i_sb));
ext4_clear_inode_flag(inode, EXT4_INODE_INDEX);
int ext4_fc_info_show(struct seq_file *seq, void *v);
void ext4_fc_init(struct super_block *sb, journal_t *journal);
void ext4_fc_init_inode(struct inode *inode);
-void ext4_fc_track_range(struct inode *inode, ext4_lblk_t start,
+void ext4_fc_track_range(handle_t *handle, struct inode *inode, ext4_lblk_t start,
ext4_lblk_t end);
-void ext4_fc_track_unlink(struct inode *inode, struct dentry *dentry);
-void ext4_fc_track_link(struct inode *inode, struct dentry *dentry);
-void ext4_fc_track_create(struct inode *inode, struct dentry *dentry);
-void ext4_fc_track_inode(struct inode *inode);
+void __ext4_fc_track_unlink(handle_t *handle, struct inode *inode,
+ struct dentry *dentry);
+void __ext4_fc_track_link(handle_t *handle, struct inode *inode,
+ struct dentry *dentry);
+void ext4_fc_track_unlink(handle_t *handle, struct dentry *dentry);
+void ext4_fc_track_link(handle_t *handle, struct dentry *dentry);
+void ext4_fc_track_create(handle_t *handle, struct dentry *dentry);
+void ext4_fc_track_inode(handle_t *handle, struct inode *inode);
void ext4_fc_mark_ineligible(struct super_block *sb, int reason);
void ext4_fc_start_ineligible(struct super_block *sb, int reason);
void ext4_fc_stop_ineligible(struct super_block *sb);
ext4_group_t block_group,
unsigned int flags);
-extern __printf(6, 7)
-void __ext4_error(struct super_block *, const char *, unsigned int, int, __u64,
- const char *, ...);
+extern __printf(7, 8)
+void __ext4_error(struct super_block *, const char *, unsigned int, bool,
+ int, __u64, const char *, ...);
extern __printf(6, 7)
void __ext4_error_inode(struct inode *, const char *, unsigned int,
ext4_fsblk_t, int, const char *, ...);
const char *, ...);
extern void __ext4_std_error(struct super_block *, const char *,
unsigned int, int);
-extern __printf(5, 6)
-void __ext4_abort(struct super_block *, const char *, unsigned int, int,
- const char *, ...);
extern __printf(4, 5)
void __ext4_warning(struct super_block *, const char *, unsigned int,
const char *, ...);
#define EXT4_ERROR_FILE(file, block, fmt, a...) \
ext4_error_file((file), __func__, __LINE__, (block), (fmt), ## a)
+#define ext4_abort(sb, err, fmt, a...) \
+ __ext4_error((sb), __func__, __LINE__, true, (err), 0, (fmt), ## a)
+
#ifdef CONFIG_PRINTK
#define ext4_error_inode(inode, func, line, block, fmt, ...) \
#define ext4_error_file(file, func, line, block, fmt, ...) \
__ext4_error_file(file, func, line, block, fmt, ##__VA_ARGS__)
#define ext4_error(sb, fmt, ...) \
- __ext4_error((sb), __func__, __LINE__, 0, 0, (fmt), ##__VA_ARGS__)
+ __ext4_error((sb), __func__, __LINE__, false, 0, 0, (fmt), \
+ ##__VA_ARGS__)
#define ext4_error_err(sb, err, fmt, ...) \
- __ext4_error((sb), __func__, __LINE__, (err), 0, (fmt), ##__VA_ARGS__)
-#define ext4_abort(sb, err, fmt, ...) \
- __ext4_abort((sb), __func__, __LINE__, (err), (fmt), ##__VA_ARGS__)
+ __ext4_error((sb), __func__, __LINE__, false, (err), 0, (fmt), \
+ ##__VA_ARGS__)
#define ext4_warning(sb, fmt, ...) \
__ext4_warning(sb, __func__, __LINE__, fmt, ##__VA_ARGS__)
#define ext4_warning_inode(inode, fmt, ...) \
#define ext4_error(sb, fmt, ...) \
do { \
no_printk(fmt, ##__VA_ARGS__); \
- __ext4_error(sb, "", 0, 0, 0, " "); \
+ __ext4_error(sb, "", 0, false, 0, 0, " "); \
} while (0)
#define ext4_error_err(sb, err, fmt, ...) \
do { \
no_printk(fmt, ##__VA_ARGS__); \
- __ext4_error(sb, "", 0, err, 0, " "); \
-} while (0)
-#define ext4_abort(sb, err, fmt, ...) \
-do { \
- no_printk(fmt, ##__VA_ARGS__); \
- __ext4_abort(sb, "", 0, err, " "); \
+ __ext4_error(sb, "", 0, false, err, 0, " "); \
} while (0)
#define ext4_warning(sb, fmt, ...) \
do { \
spin_unlock(ext4_group_lock_ptr(sb, group));
}
+#ifdef CONFIG_QUOTA
+static inline bool ext4_quota_capable(struct super_block *sb)
+{
+ return (test_opt(sb, QUOTA) || ext4_has_feature_quota(sb));
+}
+
+static inline bool ext4_is_quota_journalled(struct super_block *sb)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+
+ return (ext4_has_feature_quota(sb) ||
+ sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]);
+}
+#endif
+
/*
* Block validity checking
*/
/* dir.c */
extern const struct file_operations ext4_dir_operations;
-#ifdef CONFIG_UNICODE
-extern const struct dentry_operations ext4_dentry_ops;
-#endif
-
/* file.c */
extern const struct inode_operations ext4_file_inode_operations;
extern const struct file_operations ext4_file_operations;
extern int ext4_ci_compare(const struct inode *parent,
const struct qstr *fname,
const struct qstr *entry, bool quick);
-extern int __ext4_unlink(struct inode *dir, const struct qstr *d_name,
+extern int __ext4_unlink(handle_t *handle, struct inode *dir, const struct qstr *d_name,
struct inode *inode);
extern int __ext4_link(struct inode *dir, struct inode *inode,
struct dentry *dentry);
extern int ext4_bio_write_page(struct ext4_io_submit *io,
struct page *page,
int len,
- struct writeback_control *wbc,
bool keep_towrite);
extern struct ext4_io_end_vec *ext4_alloc_io_end_vec(ext4_io_end_t *io_end);
extern struct ext4_io_end_vec *ext4_last_io_end_vec(ext4_io_end_t *io_end);
projects / linux-2.6-microblaze.git / blobdiff