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btrfs-progs: Make btrfs-debug-tree print all readable strings for inode flags 

Before this patch, only 3 inode flags have readable string: NODATACOW,
NODATASUM, READONLY.

This patch will output all readable strings for remaining inode flags,
making debug-tree tool more handy.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ minor adjustments ]
Signed-off-by: David Sterba <dsterba@suse.com>
master
Qu Wenruo 2016-10-10 10:12:22 +08:00 committed by David Sterba
parent e93f3e7ded
commit 5bd4016363
1 changed files with 27 additions and 20 deletions
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47
print-tree.c
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@ -851,29 +851,36 @@ static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
}
}
/* Caller should ensure sizeof(*ret) >= 29 "NODATASUM|NODATACOW|READONLY" */
/* Btrfs inode flag stringification helper */
#define STRCAT_ONE_INODE_FLAG(flags, name, empty, dst) ({ \
if (flags & BTRFS_INODE_##name) { \
if (!empty) \
strcat(dst, "|"); \
strcat(dst, #name); \
empty = 0; \
} \
})
/*
* Caller should ensure sizeof(*ret) >= 102: all charactors plus '|' of
* BTRFS_INODE_* flags
*/
static void inode_flags_to_str(u64 flags, char *ret)
{
int empty = 1;
if (flags & BTRFS_INODE_NODATASUM) {
empty = 0;
strcpy(ret, "NODATASUM");
}
if (flags & BTRFS_INODE_NODATACOW) {
if (!empty) {
empty = 0;
strcat(ret, "|");
}
strcat(ret, "NODATACOW");
}
if (flags & BTRFS_INODE_READONLY) {
if (!empty) {
empty = 0;
strcat(ret, "|");
}
strcat(ret, "READONLY");
}
STRCAT_ONE_INODE_FLAG(flags, NODATASUM, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, NODATACOW, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, READONLY, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, NOCOMPRESS, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, PREALLOC, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, SYNC, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, IMMUTABLE, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, APPEND, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, NODUMP, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, NOATIME, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, DIRSYNC, empty, ret);
STRCAT_ONE_INODE_FLAG(flags, COMPRESS, empty, ret);
if (empty)
strcat(ret, "none");
}
@ -902,7 +909,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
u32 nr = btrfs_header_nritems(l);
u64 objectid;
u32 type;
char flags_str[32];
char flags_str[256];
printf("leaf %llu items %d free space %d generation %llu owner %llu\n",
(unsigned long long)btrfs_header_bytenr(l), nr,