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| author | Heinrich Schuchardt <[email protected]> | 2023-09-10 06:54:45 +0200 |
|---|---|---|
| committer | Ard Biesheuvel <[email protected]> | 2023-09-11 09:10:02 +0000 |
| commit | 79b83606abc778aa3cbee535b362ce905d0b9448 (patch) | |
| tree | 870e98c342a29df53d8a0e99e9e5f9e281edfdfc /lib/test_fortify/write_overflow-strncpy.c | |
| parent | e7761d827e99919c32400056a884e481ef008ec4 (diff) | |
efivarfs: fix statfs() on efivarfs
Some firmware (notably U-Boot) provides GetVariable() and
GetNextVariableName() but not QueryVariableInfo().
With commit d86ff3333cb1 ("efivarfs: expose used and total size") the
statfs syscall was broken for such firmware.
If QueryVariableInfo() does not exist or returns EFI_UNSUPPORTED, just
report the file system size as 0 as statfs_simple() previously did.
Fixes: d86ff3333cb1 ("efivarfs: expose used and total size")
Link: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Heinrich Schuchardt <[email protected]>
[ardb: log warning on QueryVariableInfo() failure]
Reviewed-by: Ilias Apalodimas <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Diffstat (limited to 'lib/test_fortify/write_overflow-strncpy.c')
0 files changed, 0 insertions, 0 deletions