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| author | Lennart Poettering <lennart@poettering.net> | 2021-02-25 12:33:35 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2021-02-25 12:34:40 -0500 |
| commit | 1f4a5aba59f39a33a84152b5ae3ec0a5657b12a1 (patch) | |
| tree | 62feb709269178088f9316b6d005da32fffbc553 | |
| parent | 989a4189698c4efa53b521b6ad8236bbfc3452c3 (diff) | |
| download | e2fsprogs-1f4a5aba59f39a33a84152b5ae3ec0a5657b12a1.tar.gz | |
chattr/lsattr: expose FS_NOCOMP_FL (aka EXT2_NOCOMPR_FL)
This adds support for setting/querying the FS_NOCOMP_FL/EXT2_NOCOMPR_FL
file flag to chattr/lsattr. I picked the character "m" because it was
so far unused and all other characters that were more obvious candidates
were already taken.
The flag is available on btrfs, and with this patch it is possible to
manage it correctly.
Signed-off-by: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| -rw-r--r-- | lib/e2p/pf.c | 2 | ||||
| -rw-r--r-- | misc/chattr.1.in | 9 | ||||
| -rw-r--r-- | misc/chattr.c | 1 |
3 files changed, 9 insertions, 3 deletions
diff --git a/lib/e2p/pf.c b/lib/e2p/pf.c index 61fd4ab70..81e3bb263 100644 --- a/lib/e2p/pf.c +++ b/lib/e2p/pf.c @@ -49,6 +49,7 @@ static struct flags_name flags_array[] = { { EXT4_INLINE_DATA_FL, "N", "Inline_Data" }, { EXT4_PROJINHERIT_FL, "P", "Project_Hierarchy" }, { EXT4_VERITY_FL, "V", "Verity" }, + { EXT2_NOCOMPR_FL, "m", "Dont_Compress" }, { 0, NULL, NULL } }; @@ -76,4 +77,3 @@ void print_flags (FILE * f, unsigned long flags, unsigned options) if (long_opt && first) fputs("---", f); } - diff --git a/misc/chattr.1.in b/misc/chattr.1.in index 5bc76a981..5e1eeb79c 100644 --- a/misc/chattr.1.in +++ b/misc/chattr.1.in @@ -23,13 +23,13 @@ chattr \- change file attributes on a Linux file system .B chattr changes the file attributes on a Linux file system. .PP -The format of a symbolic mode is +-=[aAcCdDeFijPsStTux]. +The format of a symbolic mode is +-=[aAcCdDeFijmPsStTux]. .PP The operator '+' causes the selected attributes to be added to the existing attributes of the files; '-' causes them to be removed; and '=' causes them to be the only attributes that the files have. .PP -The letters 'aAcCdDeFijPsStTux' select the new attributes for the files: +The letters 'aAcCdDeFijmPsStTux' select the new attributes for the files: append only (a), no atime updates (A), compressed (c), @@ -40,6 +40,7 @@ extent format (e), case-insensitive directory lookups (F), immutable (i), data journalling (j), +don't compress (m), project hierarchy (P), secure deletion (s), synchronous updates (S), @@ -161,6 +162,10 @@ file system has a journal. When the filesystem is mounted with the attribute has no effect. Only the superuser or a process possessing the CAP_SYS_RESOURCE capability can set or clear this attribute. .TP +.B m +A file with the 'm' attribute is excluded from compression on file +systems that support per-file compression. +.TP .B N A file with the 'N' attribute set indicates that the file has data stored inline, within the inode itself. It may not be set or cleared diff --git a/misc/chattr.c b/misc/chattr.c index c0337f86b..14b57348c 100644 --- a/misc/chattr.c +++ b/misc/chattr.c @@ -102,6 +102,7 @@ static const struct flags_char flags_array[] = { { EXT2_DIRSYNC_FL, 'D' }, { EXT2_APPEND_FL, 'a' }, { EXT2_COMPR_FL, 'c' }, + { EXT2_NOCOMPR_FL, 'm' }, { EXT2_NODUMP_FL, 'd' }, { EXT4_EXTENTS_FL, 'e'}, { EXT2_IMMUTABLE_FL, 'i' }, |