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| author | Theodore Ts'o <tytso@mit.edu> | 2019-10-22 18:42:25 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2019-10-22 18:55:06 -0400 |
| commit | e6069a05daeb8d18289ad7772d7800b09b418bca (patch) | |
| tree | be0b6030c0c23508d048d4b44379575f0a6e1edc /misc/tune2fs.c | |
| parent | 4b4f7b359774453ed88a7d111e73a4f2586e5c28 (diff) | |
| download | e2fsprogs-e6069a05daeb8d18289ad7772d7800b09b418bca.tar.gz | |
Teach ext2fs_open2() to honor the EXT2_FLAG_SUPER_ONLY flag
Opening the file system with EXT2_FLAG_SUPER_ONLY will leave
fs->group_desc to be NULL and modify "dumpe2fs -h" and tune2fs when it
is emulating e2label to use this flag. This speeds up "dumpe2fs -h"
and "e2label" when operating on very large file systems.
To allow other libext2fs functions to work without too many surprises,
ext2fs_group_desc() will read in the block group descriptors on
demand. This allows "dumpe2fs -h" to be able to read the journal
inode, for example.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cray-bug-id: LUS-5777
Diffstat (limited to 'misc/tune2fs.c')
| -rw-r--r-- | misc/tune2fs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/misc/tune2fs.c b/misc/tune2fs.c index 39fce4a9..77a45875 100644 --- a/misc/tune2fs.c +++ b/misc/tune2fs.c @@ -1698,7 +1698,7 @@ static void parse_e2label_options(int argc, char ** argv) argv[1]); exit(1); } - open_flag = EXT2_FLAG_JOURNAL_DEV_OK; + open_flag = EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SUPER_ONLY; if (argc == 3) { open_flag |= EXT2_FLAG_RW; L_flag = 1; |