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Arnd,
> The lpfc_debug_dump_all_queues() function repeatedly calls into
> lpfc_debug_dump_qe(), which has a temporary 128 byte buffer. This was
> fine before the introduction of CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE
> because each instance could occupy the same stack slot. However, now
> they
The pull request you sent on Wed, 10 Jul 2019 15:32:15 +0200:
> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
> tags/staging-5.3-rc1
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/e786741ff1b52769b044b7f4407f39cd13ee5d2d
Thank you!
--
From: Joe Perches
Date: Tue, 9 Jul 2019 22:04:13 -0700
> These GENMASK uses are inverted argument order and the
> actual masks produced are incorrect. Fix them.
>
> Add checkpatch tests to help avoid more misuses too.
Patches #7 and #8 applied to 'net', with appropriate Fixes tags
added to
This print statement is redundant as kfifo_alloc just calls kmalloc_array
and without the __GFP_NOWARN flag, already does a dump_stack().
Signed-off-by: Keyur Patel
Changes in v3:
- fix checkpatch warrning
---
drivers/staging/most/cdev/cdev.c | 4 +---
1 file changed, 1 insertion(+), 3
This print statement is redundant as kfifo_alloc just calls kmalloc_array
and without the __GFP_NOWARN flag, already does a dump_stack().
Signed-off-by: Keyur Patel
---
Changes in v2:
- Edit subject line.
---
drivers/staging/most/cdev/cdev.c | 5 ++---
1 file changed, 2 insertions(+), 3
This print statement is redundant as kfifo_alloc just calls kmalloc_array
and without the __GFP_NOWARN flag, already does a dump_stack().
Signed-off-by: Keyur Patel
---
drivers/staging/most/cdev/cdev.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git
This patch introduces the basic inplace fixed-sized
output decompression implementation for erofs
filesystem.
In constant to fixed-sized input compression, it has
fixed-sized capacity for each compressed cluster to
contain compressed data with the following advantages:
1) improved storage
This patch adds decompression backend to EROFS, which
supports uncompressed and LZ4 compressed data.
For compressed data, it uses the following strategy:
1) If outputsize is very small (totally less than a threshold),
decompress to the per-CPU buffer and do memcpy directly
in order to avoid
This patch adds EROFS compression indexes support,
including legacy and compacted 2/4B indexes.
In addition, it introduces an iterable L2P mapping
operation called 'z_erofs_map_blocks_iter'.
Compared with 'erofs_map_blocks', it avoids a number
of redundant 'release and regrab' processes if they
This adds core functions to get, read an inode.
It adds statx support as well.
Signed-off-by: Gao Xiang
---
fs/erofs/inode.c | 291 +++
1 file changed, 291 insertions(+)
create mode 100644 fs/erofs/inode.c
diff --git a/fs/erofs/inode.c
This commit adds functions that transfer names to inodes.
Signed-off-by: Gao Xiang
---
fs/erofs/namei.c | 246 +++
1 file changed, 246 insertions(+)
create mode 100644 fs/erofs/namei.c
diff --git a/fs/erofs/namei.c b/fs/erofs/namei.c
new file mode
compressed data will be usually loaded into last pages of
the extent (the last page for 4k) for in-place decompression
(more specifically, in-place IO), as ilustration below,
start of compressed logical extent
| end of this logical extent
|
This patch adds a dedicated shrinker targeting to free
unneeded memory consumed by a number of erofs in-memory
data structures.
Like F2FS and UBIFS, it also adds:
- sbi->umount_mutex to avoid races on shrinker and put_super;
- sbi->shrinker_run_no to not revisit recently scanned objects.
This patch introduces per-CPU buffers in order for
the upcoming generic decompression framework to use.
Note that I tried to use in-kernel per-CPU buffer or
per-CPU page approaches to clean up further, however
noticeable performanace regression (about 2% for
sequential read) was observed.
Let's
This patch adds strategies which can be selected
by users in order to cache both incomplete ends of
compressed physical clusters as a complement of
in-place I/O in order to boost random read, but
it costs more memory than the in-place I/O only.
Signed-off-by: Gao Xiang
---
fs/erofs/Kconfig|
For each physical cluster, there is a straight-forward
way of allocating a fixed or variable-sized array to
record the corresponding file pages for its decompression
if we decide to decompress these pages asynchronously
(eg. read-ahead case), however it will take variable-sized
on-heap memory
This patch introduces an temporary _on-stack_ page
pool to reuse the freed page directly as much as
it can for better performance and release all pages
at a time, it also slightly reduces the possibility of
the potential memory allocation failure.
Signed-off-by: Gao Xiang
---
This commit adds erofs super block operations, including (u)mount,
remount_fs, show_options, statfs, in addition to some private
icache management functions.
Signed-off-by: Gao Xiang
---
fs/erofs/super.c | 502 +++
1 file changed, 502 insertions(+)
In order to introducing shrinker solution for erofs,
let's manage all mounted erofs instances at first.
Signed-off-by: Gao Xiang
---
fs/erofs/Makefile | 2 +-
fs/erofs/internal.h | 13 +
fs/erofs/super.c| 4
fs/erofs/utils.c| 32
4
This commit adds the on-disk layout header file of erofs.
On-disk format is compatible with erofs-staging added in 4.19.
Signed-off-by: Gao Xiang
---
fs/erofs/erofs_fs.h | 317
1 file changed, 317 insertions(+)
create mode 100644 fs/erofs/erofs_fs.h
- erofs_sb_info:
contains erofs-specific in-memory information.
- erofs_vnode:
contains vfs_inode and other fs-specific information.
same as super block, the only one in-memory definition exists.
- erofs_map_blocks
Logical to physical block mapping, used by erofs_map_blocks().
This patch introduces another concept used by decompress
subsystem called 'workstation'. It can be seen as
a sparse array that stores pointers pointed to data
structures related to the corresponding physical clusters.
All lookups are protected by RCU read lock. Besides,
reference count and
This commit adds functions for meta and raw data, and also
provides address_space_operations for raw data access.
Signed-off-by: Gao Xiang
---
fs/erofs/data.c | 390
1 file changed, 390 insertions(+)
create mode 100644 fs/erofs/data.c
diff
This patch adds to support special inode, such as
block dev, char, socket, pipe inode.
Signed-off-by: Gao Xiang
---
fs/erofs/inode.c | 27 +--
1 file changed, 25 insertions(+), 2 deletions(-)
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index
This implements xattr and posixacl functionalities.
1) Inline and shared xattrs are introduced for flexibility.
Specifically, if the same xattr is used for a large number of
inodes or the size of a xattr is so large that unsuitable to
inline, a shared xattr will be used instead in xattr
Currently kernel has scattered tagged pointer usages
hacked by hand in plain code, without a unique and
portable functionset to highlight the tagged pointer
itself and wrap these hacked code in order to clean up
all over meaningless magic masks.
This patch introduces simple generic methods to
This documents key features, usage, and
on-disk design of erofs.
Signed-off-by: Gao Xiang
---
Documentation/filesystems/erofs.txt | 211
1 file changed, 211 insertions(+)
create mode 100644 Documentation/filesystems/erofs.txt
diff --git
Add basic tracepoints for ->readpage{,s}, ->lookup,
->destroy_inode, fill_inode and map_blocks.
Signed-off-by: Gao Xiang
---
include/trace/events/erofs.h | 241 +++
1 file changed, 241 insertions(+)
create mode 100644 include/trace/events/erofs.h
diff --git
This commit adds Makefile and Kconfig for erofs, and
updates Makefile and Kconfig files in the fs directory.
Signed-off-by: Gao Xiang
---
fs/Kconfig| 1 +
fs/Makefile | 1 +
fs/erofs/Kconfig | 45 +
fs/erofs/Makefile | 9 +
4
This adds functions for directory, mainly readdir.
Signed-off-by: Gao Xiang
---
fs/erofs/dir.c | 147 +
1 file changed, 147 insertions(+)
create mode 100644 fs/erofs/dir.c
diff --git a/fs/erofs/dir.c b/fs/erofs/dir.c
new file mode 100644
index
Changelog from v1:
o resend the whole filesystem into a patchset suggested by Greg;
o code is more cleaner, especially for decompression frontend.
--8<--
Hi,
EROFS file system has been in Linux-staging for about a year.
It has been proved to be stable enough to move out of staging
by
A null check before a kfree is redundant, so remove it.
This is detected by coccinelle.
Signed-off-by: YueHaibing
---
drivers/staging/kpc2000/kpc2000_spi.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/staging/kpc2000/kpc2000_spi.c
Conversion to use gpio descriptors broke all gpio lookups as
devm_gpiod_get_index was converted to use dev->driver->name for
the gpio name lookup. Fix this by using the name param. In
addition gpiod_get post-fixes the -gpios to the name so that
shouldn't be included in the call. However this then
Typically gpiod_set_value calls would assert the reset line and
then release it using the symantics of:
gpiod_set_value(par->gpio.reset, 0);
... delay
gpiod_set_value(par->gpio.reset, 1);
And the gpio binding would specify the polarity.
Prior to conversion to gpiod calls
GPIO probing and reset polarity are broken.
Fix them.
Fixes: c440eee1a7a1 ("Staging: fbtft: Switch to the gpio descriptor interface")
Phil Reid (2):
Staging: fbtft: Fix probing of gpio descriptor
Staging: fbtft: Fix reset assertion when using gpio descriptor
On Wed, Jul 10, 2019 at 10:24:06AM -0400, Keyur Patel wrote:
> On Wed, Jul 10, 2019 at 06:35:38PM +0200, Greg Kroah-Hartman wrote:
> > On Wed, Jul 10, 2019 at 08:20:17AM -0400, Keyur Patel wrote:
> > > Added missing logging statement when kfifo_alloc fails, to improve
> > > debugging.
> > >
> > >
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