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| author | Kees Cook <kees+treewide@kernel.org> | 2026-09-02 15:31:14 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-04 21:37:00 -0700 |
| commit | 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch) | |
| tree | c65086f9bdcd48c6360fb7cb4598bca084da1f32 /Documentation/admin-guide/jfs.rst | |
| download | linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip | |
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci
This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.
Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.
Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'Documentation/admin-guide/jfs.rst')
| -rw-r--r-- | Documentation/admin-guide/jfs.rst | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/Documentation/admin-guide/jfs.rst b/Documentation/admin-guide/jfs.rst new file mode 100644 index 000000000..9e12d936b --- /dev/null +++ b/Documentation/admin-guide/jfs.rst @@ -0,0 +1,66 @@ +=========================================== +IBM's Journaled File System (JFS) for Linux +=========================================== + +JFS Homepage: http://jfs.sourceforge.net/ + +The following mount options are supported: + +(*) == default + +iocharset=name + Character set to use for converting from Unicode to + ASCII. The default is to do no conversion. Use + iocharset=utf8 for UTF-8 translations. This requires + CONFIG_NLS_UTF8 to be set in the kernel .config file. + iocharset=none specifies the default behavior explicitly. + +resize=value + Resize the volume to <value> blocks. JFS only supports + growing a volume, not shrinking it. This option is only + valid during a remount, when the volume is mounted + read-write. The resize keyword with no value will grow + the volume to the full size of the partition. + +nointegrity + Do not write to the journal. The primary use of this option + is to allow for higher performance when restoring a volume + from backup media. The integrity of the volume is not + guaranteed if the system abnormally abends. + +integrity(*) + Commit metadata changes to the journal. Use this option to + remount a volume where the nointegrity option was + previously specified in order to restore normal behavior. + +errors=continue + Keep going on a filesystem error. +errors=remount-ro(*) + Remount the filesystem read-only on an error. +errors=panic + Panic and halt the machine if an error occurs. + +uid=value + Override on-disk uid with specified value +gid=value + Override on-disk gid with specified value +umask=value + Override on-disk umask with specified octal value. For + directories, the execute bit will be set if the corresponding + read bit is set. + +discard=minlen, discard/nodiscard(*) + This enables/disables the use of discard/TRIM commands. + The discard/TRIM commands are sent to the underlying + block device when blocks are freed. This is useful for SSD + devices and sparse/thinly-provisioned LUNs. The FITRIM ioctl + command is also available together with the nodiscard option. + The value of minlen specifies the minimum blockcount, when + a TRIM command to the block device is considered useful. + When no value is given to the discard option, it defaults to + 64 blocks, which means 256KiB in JFS. + The minlen value of discard overrides the minlen value given + on an FITRIM ioctl(). + +The JFS mailing list can be subscribed to by using the link labeled +"Mail list Subscribe" at our web page http://jfs.sourceforge.net/ |
