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Message-ID: <20141107215224.883.32873.stgit@birch.djwong.org> Date: Fri, 07 Nov 2014 13:52:24 -0800 From: "Darrick J. Wong" <darrick.wong@...cle.com> To: tytso@....edu, darrick.wong@...cle.com Cc: linux-ext4@...r.kernel.org Subject: [PATCH 15/47] misc: don't allow mk_hugefiles unless the fs supports extents The current mk_hugefile code in mke2fs doesn't support creating non-extent files, so disable the functionality when we're mkfs'ing without extent support. The fallocate patches further on will eliminate the need for this. Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com> --- misc/mk_hugefiles.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/misc/mk_hugefiles.c b/misc/mk_hugefiles.c index 3e4274c..9097b7c 100644 --- a/misc/mk_hugefiles.c +++ b/misc/mk_hugefiles.c @@ -477,6 +477,10 @@ errcode_t mk_hugefiles(ext2_filsys fs, const char *device_name) if (!get_bool_from_profile(fs_types, "make_hugefiles", 0)) return 0; + if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super, + EXT3_FEATURE_INCOMPAT_EXTENTS)) + return EXT2_ET_EXTENT_NOT_SUPPORTED; + uid = get_int_from_profile(fs_types, "hugefiles_uid", 0); gid = get_int_from_profile(fs_types, "hugefiles_gid", 0); fs->umask = get_int_from_profile(fs_types, "hugefiles_umask", 077); -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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