ext2fs sb= mount option fix (kernel 2.4.25)
PATCH 1/1 ext2fs sb= mount option fix (kernel 2.4.25)
The following patch fixes a bug in the processing of the sb=
(alternate superblock) mount option for ext2: for devices with 1024-byte blocks, the value from the option is never actually used. This patch is for kernel 2.4.25. 2.6.5 also has an issue with sb=, and I'll send a patch for that separately.
--Andrew Church
[email protected] http://achurch.org/
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ext2/super.c renamed from fs/ext2/super.c +3 -1
@@ -427,7 +427,7 @@unsigned short resuid =EXT2_DEF_RESUID ;unsigned short resgid =EXT2_DEF_RESGID ;unsigned long block; -unsigned long logic_sb_block =1 ; +unsigned long logic_sb_block;unsigned long offset =0 ;kdev_t dev = sb->s_dev;int blocksize =BLOCK_SIZE ;
@@ -465,6 +465,8 @@if (blocksize !=BLOCK_SIZE ) { logic_sb_block = (sb_block*BLOCK_SIZE ) / blocksize; offset = (sb_block*BLOCK_SIZE ) % blocksize; + }else { + logic_sb_block = sb_block; }if (!(bh =sb_bread (sb, logic_sb_block))) {