diff options
| author | David Howells <dhowells@redhat.com> | 2017-03-31 19:32:17 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-04-03 07:06:00 +0200 |
| commit | 3209f68b3ca4667069923a325c88b21131bfdf9f (patch) | |
| tree | 28807921a600cc5fd1ede24fcac669f0f0b2e994 /samples/statx | |
| parent | statx: Reserve the top bit of the mask for future struct expansion (diff) | |
| download | linux-3209f68b3ca4667069923a325c88b21131bfdf9f.tar.xz linux-3209f68b3ca4667069923a325c88b21131bfdf9f.zip | |
statx: Include a mask for stx_attributes in struct statx
Include a mask in struct stat to indicate which bits of stx_attributes the
filesystem actually supports.
This would also be useful if we add another system call that allows you to
do a 'bulk attribute set' and pass in a statx struct with the masks
appropriately set to say what you want to set.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'samples/statx')
| -rw-r--r-- | samples/statx/test-statx.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/samples/statx/test-statx.c b/samples/statx/test-statx.c index 8571d766331d..d4d77b09412c 100644 --- a/samples/statx/test-statx.c +++ b/samples/statx/test-statx.c @@ -141,8 +141,8 @@ static void dump_statx(struct statx *stx) if (stx->stx_mask & STATX_BTIME) print_time(" Birth: ", &stx->stx_btime); - if (stx->stx_attributes) { - unsigned char bits; + if (stx->stx_attributes_mask) { + unsigned char bits, mbits; int loop, byte; static char attr_representation[64 + 1] = @@ -160,14 +160,18 @@ static void dump_statx(struct statx *stx) printf("Attributes: %016llx (", stx->stx_attributes); for (byte = 64 - 8; byte >= 0; byte -= 8) { bits = stx->stx_attributes >> byte; + mbits = stx->stx_attributes_mask >> byte; for (loop = 7; loop >= 0; loop--) { int bit = byte + loop; - if (bits & 0x80) + if (!(mbits & 0x80)) + putchar('.'); /* Not supported */ + else if (bits & 0x80) putchar(attr_representation[63 - bit]); else - putchar('-'); + putchar('-'); /* Not set */ bits <<= 1; + mbits <<= 1; } if (byte) putchar(' '); |