Messages in this thread Patch in this message | | | Subject | Re: [BUG?]Set XIP mount option on ext2 bypass check. | From | Carsten Otte <> | Date | Thu, 21 Jun 2007 15:17:49 +0200 |
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This is an updated version of my bugfix patch. Yan Zheng pointed out, that ext2_remount lacks checking if -o xip should be enabled or not. This patch checks for presence of direct_access on the backing block device and if the blocksize meets the requirements. Andrew, please consider adding this patch to -mm.
Signed-off-by: Carsten Otte <cotte@de.ibm.com> --- Index: linux-2.6.22-rc4-mm/fs/ext2/super.c =================================================================== --- linux-2.6.22-rc4-mm.orig/fs/ext2/super.c +++ linux-2.6.22-rc4-mm/fs/ext2/super.c @@ -1071,6 +1071,14 @@ static int ext2_remount (struct super_bl sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | ((sbi->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 ((ext2_use_xip(sb)) && (sb->s_blocksize != PAGE_SIZE)) { + printk("XIP: Unsupported blocksize\n"); + goto restore_opts; + } + es = sbi->s_es; if (((sbi->s_mount_opt & EXT2_MOUNT_XIP) != (old_mount_opt & EXT2_MOUNT_XIP)) &&
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