Messages in this thread Patch in this message | | | Subject | [UPDATE][12/24]ext3 enlarge blocksize | From | sho@tnes ... | Date | Thu, 25 May 2006 21:49:02 +0900 |
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Summary of this patch: [12/24] enlarge block size(ext3) - Add an incompat flag "EXT3_FEATURE_INCOMPAT_LARGE_BLOCK" which indicates that the filesystem is extended.
- Allow block size till pagesize in ext3.
Signed-off-by: Takashi Sato sho@tnes.nec.co.jp --- diff -upNr -X linux-2.6.17-rc4/Documentation/dontdiff linux-2.6.17-rc4/fs/ext3/super.c linux-2.6.17-rc4.tmp/fs/ext3/super.c --- linux-2.6.17-rc4/fs/ext3/super.c 2006-05-25 16:33:29.710682647 +0900 +++ linux-2.6.17-rc4.tmp/fs/ext3/super.c 2006-05-25 16:33:52.245838621 +0900 @@ -1463,11 +1463,17 @@ static int ext3_fill_super (struct super } blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size); + if (blocksize > PAGE_SIZE) { + printk(KERN_ERR "EXT3-fs: cannot mount filesystem with " + "blocksize %u larger than PAGE_SIZE %u on %s\n", + blocksize, PAGE_SIZE, sb->s_id); + goto failed_mount; + } + if (blocksize < EXT3_MIN_BLOCK_SIZE || - blocksize > EXT3_MAX_BLOCK_SIZE) { - printk(KERN_ERR - "EXT3-fs: Unsupported filesystem blocksize %d on %s.\n", - blocksize, sb->s_id); + blocksize > EXT3_EXTENDED_MAX_BLOCK_SIZE) { + printk(KERN_ERR "EXT3-fs: Unsupported filesystem blocksize %d on %s.\n", + blocksize, sb->s_id); goto failed_mount; } diff -upNr -X linux-2.6.17-rc4/Documentation/dontdiff linux-2.6.17-rc4/include/linux/ext2_fs.h linux-2.6.17-rc4.tmp/include/linux/ext2_fs.h --- linux-2.6.17-rc4/include/linux/ext2_fs.h 2006-03-20 14:53:29.000000000 +0900 +++ linux-2.6.17-rc4.tmp/include/linux/ext2_fs.h 2006-05-25 16:33:52.246815183 +0900 @@ -91,6 +91,7 @@ static inline struct ext2_sb_info *EXT2_ */ #define EXT2_MIN_BLOCK_SIZE 1024 #define EXT2_MAX_BLOCK_SIZE 4096 +#define EXT2_EXTENDED_MAX_BLOCK_SIZE 65536 #define EXT2_MIN_BLOCK_LOG_SIZE 10 #ifdef __KERNEL__ # define EXT2_BLOCK_SIZE(s) ((s)->s_blocksize) @@ -471,11 +472,13 @@ struct ext2_super_block { #define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 #define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 #define EXT2_FEATURE_INCOMPAT_META_BG 0x0010 +#define EXT2_FEATURE_INCOMPAT_HUGE_FS 0x0080 #define EXT2_FEATURE_INCOMPAT_ANY 0xffffffff #define EXT2_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR #define EXT2_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE| \ - EXT2_FEATURE_INCOMPAT_META_BG) + EXT2_FEATURE_INCOMPAT_META_BG| \ + EXT2_FEATURE_INCOMPAT_HUGE_FS) #define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \ EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \ EXT2_FEATURE_RO_COMPAT_BTREE_DIR) diff -upNr -X linux-2.6.17-rc4/Documentation/dontdiff linux-2.6.17-rc4/include/linux/ext3_fs.h linux-2.6.17-rc4.tmp/include/linux/ext3_fs.h --- linux-2.6.17-rc4/include/linux/ext3_fs.h 2006-05-25 16:33:29.711659209 +0900 +++ linux-2.6.17-rc4.tmp/include/linux/ext3_fs.h 2006-05-25 16:33:52.247791746 +0900 @@ -86,6 +86,7 @@ struct statfs; */ #define EXT3_MIN_BLOCK_SIZE 1024 #define EXT3_MAX_BLOCK_SIZE 4096 +#define EXT3_EXTENDED_MAX_BLOCK_SIZE 65536 #define EXT3_MIN_BLOCK_LOG_SIZE 10 #ifdef __KERNEL__ # define EXT3_BLOCK_SIZE(s) ((s)->s_blocksize) @@ -563,11 +564,13 @@ static inline struct ext3_inode_info *EX #define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */ #define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */ #define EXT3_FEATURE_INCOMPAT_META_BG 0x0010 +#define EXT3_FEATURE_INCOMPAT_HUGE_FS 0x0080 #define EXT3_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR #define EXT3_FEATURE_INCOMPAT_SUPP (EXT3_FEATURE_INCOMPAT_FILETYPE| \ EXT3_FEATURE_INCOMPAT_RECOVER| \ - EXT3_FEATURE_INCOMPAT_META_BG) + EXT3_FEATURE_INCOMPAT_META_BG| \ + EXT3_FEATURE_INCOMPAT_HUGE_FS) #define EXT3_FEATURE_RO_COMPAT_SUPP (EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER| \ EXT3_FEATURE_RO_COMPAT_LARGE_FILE| \ EXT3_FEATURE_RO_COMPAT_BTREE_DIR)
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