linux-toradex.git/fs/read_write.c, branch v4.4.93

vfs: Return -ENXIO for negative SEEK_HOLE / SEEK_DATA offsets

2017-10-05T07:41:45+00:00

commit fc46820b27a2d9a46f7e90c9ceb4a64a1bc5fab8 upstream.

In generic_file_llseek_size, return -ENXIO for negative offsets as well
as offsets beyond EOF.  This affects filesystems which don't implement
SEEK_HOLE / SEEK_DATA internally, possibly because they don't support
holes.

Fixes xfstest generic/448.

Signed-off-by: Andreas Gruenbacher 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

new_sync_write(): discard ->ki_pos unless the return value is positive

2015-04-12T02:29:46+00:00

That allows ->write_iter() instances much more convenient life wrt
iocb->ki_pos (and fixes several filesystems with borderline POSIX
violations when zero-length write succeeds and changes the current
position).

Signed-off-by: Al Viro

->aio_read and ->aio_write removed

2015-04-12T02:29:43+00:00

no remaining users

Signed-off-by: Al Viro

kill do_sync_read/do_sync_write

2015-04-12T02:29:42+00:00

all remaining instances of aio_{read,write} (all 4 of them) have explicit
->read and ->write resp.; do_sync_read/do_sync_write is never called by
__vfs_read/__vfs_write anymore and no other users had been left.

Signed-off-by: Al Viro

make new_sync_{read,write}() static

2015-04-12T02:29:40+00:00

All places outside of core VFS that checked ->read and ->write for being NULL or
called the methods directly are gone now, so NULL {read,write} with non-NULL
{read,write}_iter will do the right thing in all cases.

Signed-off-by: Al Viro

export __vfs_read()

2015-04-12T02:29:38+00:00

Signed-off-by: Al Viro

new helper: __vfs_write()

2015-04-12T02:29:37+00:00

Signed-off-by: Al Viro

switch {compat_,}do_readv_writev() to {compat_,}import_iovec()

2015-04-12T02:27:12+00:00

Signed-off-by: Al Viro

lift iov_iter into {compat_,}do_readv_writev()

2015-04-12T02:26:45+00:00

get it closer to matching {compat_,}rw_copy_check_uvector().

Signed-off-by: Al Viro

fs: move struct kiocb to fs.h

2015-03-26T00:28:11+00:00

struct kiocb now is a generic I/O container, so move it to fs.h.
Also do a #include diet for aio.h while we're at it.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro