Commit Graph

5 Commits

Author SHA1 Message Date
Masahiro Yamada
83a44a4f47 x86: Remove toolchain check for X32 ABI capability
Commit 0bf6276392 ("x32: Warn and disable rather than error if
binutils too old") added a small test in arch/x86/Makefile because
binutils 2.22 or newer is needed to properly support elf32-x86-64. This
check is no longer necessary, as the minimum supported version of
binutils is 2.23, which is enforced at configuration time with
scripts/min-tool-version.sh.

Remove this check and replace all uses of CONFIG_X86_X32 with
CONFIG_X86_X32_ABI, as two symbols are no longer necessary.

[nathan: Rebase, fix up a few places where CONFIG_X86_X32 was still
         used, and simplify commit message to satisfy -tip requirements]

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220314194842.3452-2-nathan@kernel.org
2022-03-15 10:32:48 +01:00
Miklos Szeredi
a679a61520 fuse: fix fileattr op failure
The fileattr API conversion broke lsattr on ntfs3g.

Previously the ioctl(... FS_IOC_GETFLAGS) returned an EINVAL error, but
after the conversion the error returned by the fuse filesystem was not
propagated back to the ioctl() system call, resulting in success being
returned with bogus values.

Fix by checking for outarg.result in fuse_priv_ioctl(), just as generic
ioctl code does.

Reported-by: Jean-Pierre André <jean-pierre.andre@wanadoo.fr>
Fixes: 72227eac17 ("fuse: convert to fileattr")
Cc: <stable@vger.kernel.org> # v5.13
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2022-02-18 11:47:51 +01:00
Peng Hao
5fe0fc9f1d fuse: use kmap_local_page()
Due to the introduction of kmap_local_*, the storage of slots used for
short-term mapping has changed from per-CPU to per-thread.  kmap_atomic()
disable preemption, while kmap_local_*() only disable migration.

There is no need to disable preemption in several kamp_atomic places used
in fuse.

Link: https://lwn.net/Articles/836144/
Signed-off-by: Peng Hao <flyingpeng@tencent.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2021-10-22 17:03:01 +02:00
Miklos Szeredi
72227eac17 fuse: convert to fileattr
Since fuse just passes ioctl args through to/from server, converting to the
fileattr API is more involved, than most other filesystems.

Both .fileattr_set() and .fileattr_get() need to obtain an open file to
operate on.  The simplest way is with the following sequence:

  FUSE_OPEN
  FUSE_IOCTL
  FUSE_RELEASE

If this turns out to be a performance problem, it could be optimized for
the case when there's already a file (any file) open for the inode.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2021-04-12 15:04:30 +02:00
Miklos Szeredi
9ac29fd3f8 fuse: move ioctl to separate source file
Next patch will expand ioctl code and fuse/file.c is large enough as it is.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2021-04-12 15:04:30 +02:00