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e2fsck: enable extents on all 64bit filesystems 

Since it's impossible to address all blocks of a 64bit filesystem
without extents, have e2fsck turn on the feature if it finds (64bit &&
!extents).

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
debian-1.42.9
Darrick J. Wong 2013-10-11 21:20:36 -04:00 committed by Theodore Ts'o
parent d11f92af35
commit 27b2297d57
3 changed files with 19 additions and 0 deletions
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5
e2fsck/problem.c
View File

@ -433,6 +433,11 @@ static struct e2fsck_problem problem_table[] = {
N_("ext2fs_check_desc: %m\n"),
PROMPT_NONE, 0 },
/* 64bit is set but extents is unset. */
{ PR_0_64BIT_WITHOUT_EXTENTS,
N_("@S 64bit filesystems needs extents to access the whole disk. "),
PROMPT_FIX, PR_PREEN_OK | PR_NO_OK},
/* Pass 1 errors */
/* Pass 1: Checking inodes, blocks, and sizes */

3
e2fsck/problem.h
View File

@ -249,6 +249,9 @@ struct problem_context {
/* Checking group descriptor failed */
#define PR_0_CHECK_DESC_FAILED 0x000045
/* 64bit is set but extents are not set. */
#define PR_0_64BIT_WITHOUT_EXTENTS 0x000048
/*
* Pass 1 errors
*/

11
e2fsck/super.c
View File

@ -582,6 +582,17 @@ void check_super_block(e2fsck_t ctx)
}
}
/* Is 64bit set and extents unset? */
if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
EXT4_FEATURE_INCOMPAT_64BIT) &&
!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
EXT3_FEATURE_INCOMPAT_EXTENTS) &&
fix_problem(ctx, PR_0_64BIT_WITHOUT_EXTENTS, &pctx)) {
fs->super->s_feature_incompat |=
EXT3_FEATURE_INCOMPAT_EXTENTS;
ext2fs_mark_super_dirty(fs);
}
/*
* Verify the group descriptors....
*/