#include "ext2.h"
#include "xattr.h"
#include "acl.h"
+#include "xip.h"
static void ext2_sync_super(struct super_block *sb,
struct ext2_super_block *es);
ei->i_default_acl = EXT2_ACL_NOT_CACHED;
}
#endif
- if (!is_bad_inode(inode))
- ext2_discard_prealloc(inode);
}
-
#ifdef CONFIG_QUOTA
static ssize_t ext2_quota_read(struct super_block *sb, int type, char *data, size_t len, loff_t off);
static ssize_t ext2_quota_write(struct super_block *sb, int type, const char *data, size_t len, loff_t off);
.destroy_inode = ext2_destroy_inode,
.read_inode = ext2_read_inode,
.write_inode = ext2_write_inode,
+ .put_inode = ext2_put_inode,
.delete_inode = ext2_delete_inode,
.put_super = ext2_put_super,
.write_super = ext2_write_super,
Opt_bsd_df, Opt_minix_df, Opt_grpid, Opt_nogrpid,
Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic, Opt_err_ro,
Opt_nouid32, Opt_check, Opt_nocheck, Opt_debug, Opt_oldalloc, Opt_orlov, Opt_nobh,
- Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl,
+ Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl, Opt_xip,
Opt_ignore, Opt_err,
};
{Opt_nouser_xattr, "nouser_xattr"},
{Opt_acl, "acl"},
{Opt_noacl, "noacl"},
+ {Opt_xip, "xip"},
{Opt_ignore, "grpquota"},
{Opt_ignore, "noquota"},
{Opt_ignore, "quota"},
printk("EXT2 (no)acl options not supported\n");
break;
#endif
+ case Opt_xip:
+#ifdef CONFIG_EXT2_FS_XIP
+ set_opt (sbi->s_mount_opt, XIP);
+#else
+ printk("EXT2 xip option not supported\n");
+#endif
+ break;
case Opt_ignore:
break;
default:
((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ?
MS_POSIXACL : 0);
+ ext2_xip_verify_sb(sb); /* see if bdev supports xip, unset
+ EXT2_MOUNT_XIP if not */
+
if (le32_to_cpu(es->s_rev_level) == EXT2_GOOD_OLD_REV &&
(EXT2_HAS_COMPAT_FEATURE(sb, ~0U) ||
EXT2_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
blocksize = BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);
+ if ((ext2_use_xip(sb)) && ((blocksize != PAGE_SIZE) ||
+ (sb->s_blocksize != blocksize))) {
+ if (!silent)
+ printk("XIP: Unsupported blocksize\n");
+ goto failed_mount;
+ }
+
/* If the blocksize doesn't match, re-read the thing.. */
if (sb->s_blocksize != blocksize) {
brelse(bh);
{
struct ext2_sb_info * sbi = EXT2_SB(sb);
struct ext2_super_block * es;
+ unsigned long old_mount_opt = sbi->s_mount_opt;
+ struct ext2_mount_options old_opts;
+ unsigned long old_sb_flags;
+ int err;
+
+ /* Store the old options */
+ old_sb_flags = sb->s_flags;
+ old_opts.s_mount_opt = sbi->s_mount_opt;
+ old_opts.s_resuid = sbi->s_resuid;
+ old_opts.s_resgid = sbi->s_resgid;
/*
* Allow the "check" option to be passed as a remount option.
*/
- if (!parse_options (data, sbi))
- return -EINVAL;
+ if (!parse_options (data, sbi)) {
+ err = -EINVAL;
+ goto restore_opts;
+ }
sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
es = sbi->s_es;
+ if (((sbi->s_mount_opt & EXT2_MOUNT_XIP) !=
+ (old_mount_opt & EXT2_MOUNT_XIP)) &&
+ invalidate_inodes(sb))
+ ext2_warning(sb, __FUNCTION__, "busy inodes while remounting "\
+ "xip remain in cache (no functional problem)");
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
return 0;
if (*flags & MS_RDONLY) {
printk("EXT2-fs: %s: couldn't remount RDWR because of "
"unsupported optional features (%x).\n",
sb->s_id, le32_to_cpu(ret));
- return -EROFS;
+ err = -EROFS;
+ goto restore_opts;
}
/*
* Mounting a RDONLY partition read-write, so reread and
}
ext2_sync_super(sb, es);
return 0;
+restore_opts:
+ sbi->s_mount_opt = old_opts.s_mount_opt;
+ sbi->s_resuid = old_opts.s_resuid;
+ sbi->s_resgid = old_opts.s_resgid;
+ sb->s_flags = old_sb_flags;
+ return err;
}
static int ext2_statfs (struct super_block * sb, struct kstatfs * buf)