summaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
Diffstat (limited to 'fs')
-rw-r--r--fs/ext4/ext4.h2
-rw-r--r--fs/ext4/inode.c2
-rw-r--r--fs/ext4/namei.c3
-rw-r--r--fs/ext4/super.c25
4 files changed, 17 insertions, 15 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 46aaaa2ed4c5..a004699e7296 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -549,7 +549,7 @@ do { \
#define EXT4_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs */
#define EXT4_MOUNT_XATTR_USER 0x04000 /* Extended user attributes */
#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */
-#define EXT4_MOUNT_RESERVATION 0x10000 /* Preallocation */
+#define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000 /* No auto delalloc mapping */
#define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */
#define EXT4_MOUNT_NOBH 0x40000 /* No bufferheads */
#define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index d3118d1acc39..bed4a0abd0d1 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3908,7 +3908,7 @@ void ext4_truncate(struct inode *inode)
if (!ext4_can_truncate(inode))
return;
- if (inode->i_size == 0)
+ if (inode->i_size == 0 && !test_opt(inode->i_sb, NO_AUTO_DA_ALLOC))
ei->i_state |= EXT4_STATE_DA_ALLOC_CLOSE;
if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL) {
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index eb20246c8965..22098e1cd085 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2497,7 +2497,8 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
ext4_mark_inode_dirty(handle, new_inode);
if (!new_inode->i_nlink)
ext4_orphan_add(handle, new_inode);
- force_da_alloc = 1;
+ if (!test_opt(new_dir->i_sb, NO_AUTO_DA_ALLOC))
+ force_da_alloc = 1;
}
retval = 0;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b9aefceb41e7..45d07cf9df34 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -816,8 +816,6 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
if (!test_opt(sb, POSIX_ACL) && (def_mount_opts & EXT4_DEFM_ACL))
seq_puts(seq, ",noacl");
#endif
- if (!test_opt(sb, RESERVATION))
- seq_puts(seq, ",noreservation");
if (sbi->s_commit_interval != JBD2_DEFAULT_MAX_COMMIT_AGE*HZ) {
seq_printf(seq, ",commit=%u",
(unsigned) (sbi->s_commit_interval / HZ));
@@ -868,6 +866,9 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
if (test_opt(sb, DATA_ERR_ABORT))
seq_puts(seq, ",data_err=abort");
+ if (test_opt(sb, NO_AUTO_DA_ALLOC))
+ seq_puts(seq, ",auto_da_alloc=0");
+
ext4_show_quota_options(seq, sb);
return 0;
}
@@ -1017,7 +1018,7 @@ enum {
Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic, Opt_err_ro,
Opt_nouid32, Opt_debug, Opt_oldalloc, Opt_orlov,
Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl,
- Opt_reservation, Opt_noreservation, Opt_noload, Opt_nobh, Opt_bh,
+ Opt_auto_da_alloc, Opt_noload, Opt_nobh, Opt_bh,
Opt_commit, Opt_min_batch_time, Opt_max_batch_time,
Opt_journal_update, Opt_journal_dev,
Opt_journal_checksum, Opt_journal_async_commit,
@@ -1052,8 +1053,6 @@ static const match_table_t tokens = {
{Opt_nouser_xattr, "nouser_xattr"},
{Opt_acl, "acl"},
{Opt_noacl, "noacl"},
- {Opt_reservation, "reservation"},
- {Opt_noreservation, "noreservation"},
{Opt_noload, "noload"},
{Opt_nobh, "nobh"},
{Opt_bh, "bh"},
@@ -1088,6 +1087,7 @@ static const match_table_t tokens = {
{Opt_nodelalloc, "nodelalloc"},
{Opt_inode_readahead_blks, "inode_readahead_blks=%u"},
{Opt_journal_ioprio, "journal_ioprio=%u"},
+ {Opt_auto_da_alloc, "auto_da_alloc=%u"},
{Opt_err, NULL},
};
@@ -1220,12 +1220,6 @@ static int parse_options(char *options, struct super_block *sb,
"not supported\n");
break;
#endif
- case Opt_reservation:
- set_opt(sbi->s_mount_opt, RESERVATION);
- break;
- case Opt_noreservation:
- clear_opt(sbi->s_mount_opt, RESERVATION);
- break;
case Opt_journal_update:
/* @@@ FIXME */
/* Eventually we will want to be able to create
@@ -1491,6 +1485,14 @@ set_qf_format:
*journal_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE,
option);
break;
+ case Opt_auto_da_alloc:
+ if (match_int(&args[0], &option))
+ return 0;
+ if (option)
+ clear_opt(sbi->s_mount_opt, NO_AUTO_DA_ALLOC);
+ else
+ set_opt(sbi->s_mount_opt,NO_AUTO_DA_ALLOC);
+ break;
default:
printk(KERN_ERR
"EXT4-fs: Unrecognized mount option \"%s\" "
@@ -2306,7 +2308,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_min_batch_time = EXT4_DEF_MIN_BATCH_TIME;
sbi->s_max_batch_time = EXT4_DEF_MAX_BATCH_TIME;
- set_opt(sbi->s_mount_opt, RESERVATION);
set_opt(sbi->s_mount_opt, BARRIER);
/*