It's messy to use "" to disable compression. Introduce the new value "no"
which can also be used for this purpose.
Signed-off-by: Satoru Takeuchi <satoru.takeu...@gmail.com>
---
Documentation/btrfs-property.asciidoc | 2 +-
props.c | 6 ++++--
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/Documentation/btrfs-property.asciidoc
b/Documentation/btrfs-property.asciidoc
index 7ed6a7d..97b90d6 100644
--- a/Documentation/btrfs-property.asciidoc
+++ b/Documentation/btrfs-property.asciidoc
@@ -43,7 +43,7 @@ read-only flag of subvolume: true or false
label::::
label of device
compression::::
-compression setting for an inode: lzo, zlib, zstd, or "" (empty string)
+compression setting for an inode: lzo, zlib, zstd, no, or "" (empty string).
Both no and "" are for disabling compression.
*list* [-t <type>] <object>::
Lists available properties with their descriptions for the given object.
diff --git a/props.c b/props.c
index a7e3e96..a2df868 100644
--- a/props.c
+++ b/props.c
@@ -142,9 +142,11 @@ static int prop_compression(enum prop_object_type type,
memcpy(xattr_name + XATTR_BTRFS_PREFIX_LEN, name, strlen(name));
xattr_name[XATTR_BTRFS_PREFIX_LEN + strlen(name)] = '\0';
- if (value)
+ if (value) {
+ if (!strcmp(value, "no"))
+ value = "";
sret = fsetxattr(fd, xattr_name, value, strlen(value), 0);
- else
+ } else
sret = fgetxattr(fd, xattr_name, NULL, 0);
if (sret < 0) {
ret = -errno;
--
2.7.4
--
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