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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-21 13:53:00 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-21 13:53:00 -0800 |
| commit | 04471d3f18cb9a2155797c810670196c05dd9f78 (patch) | |
| tree | 6649c992996e5075705244475a09d3bf760c0a45 /fs | |
| parent | df24212a493afda0d4de42176bea10d45825e9a0 (diff) | |
| parent | ddad5187fc2a12cb84c9d1ac8ecb816708a2986b (diff) | |
| download | linux-04471d3f18cb9a2155797c810670196c05dd9f78.tar.gz | |
Merge tag 'for-linux-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger:
- Many cleanups and fixes for our virtio code
- Add support for a pseudo RTC
- Fix for a possible jailbreak
- Minor fixes (spelling, header files)
* tag 'for-linux-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: irq.h: include <asm-generic/irq.h>
um: io.h: include <linux/types.h>
um: add a pseudo RTC
um: remove process stub VMA
um: rework userspace stubs to not hard-code stub location
um: separate child and parent errors in clone stub
um: defer killing userspace on page table update failures
um: mm: check more comprehensively for stub changes
um: print register names in wait_for_stub
um: hostfs: use a kmem cache for inodes
mm: Remove arch_remap() and mm-arch-hooks.h
um: fix spelling mistake in Kconfig "privleges" -> "privileges"
um: virtio: allow devices to be configured for wakeup
um: time-travel: rework interrupt handling in ext mode
um: virtio: disable VQs during suspend
um: virtio: fix handling of messages without payload
um: virtio: clean up a comment
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/hostfs/hostfs_kern.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index aea35459d39031..4a5beca6eaa8e4 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -34,6 +34,8 @@ static inline struct hostfs_inode_info *HOSTFS_I(struct inode *inode) #define FILE_HOSTFS_I(file) HOSTFS_I(file_inode(file)) +static struct kmem_cache *hostfs_inode_cache; + /* Changed in hostfs_args before the kernel starts running */ static char *root_ino = ""; static int append = 0; @@ -221,7 +223,7 @@ static struct inode *hostfs_alloc_inode(struct super_block *sb) { struct hostfs_inode_info *hi; - hi = kmalloc(sizeof(*hi), GFP_KERNEL_ACCOUNT); + hi = kmem_cache_alloc(hostfs_inode_cache, GFP_KERNEL_ACCOUNT); if (hi == NULL) return NULL; hi->fd = -1; @@ -243,7 +245,7 @@ static void hostfs_evict_inode(struct inode *inode) static void hostfs_free_inode(struct inode *inode) { - kfree(HOSTFS_I(inode)); + kmem_cache_free(hostfs_inode_cache, HOSTFS_I(inode)); } static int hostfs_show_options(struct seq_file *seq, struct dentry *root) @@ -986,12 +988,16 @@ MODULE_ALIAS_FS("hostfs"); static int __init init_hostfs(void) { + hostfs_inode_cache = KMEM_CACHE(hostfs_inode_info, 0); + if (!hostfs_inode_cache) + return -ENOMEM; return register_filesystem(&hostfs_type); } static void __exit exit_hostfs(void) { unregister_filesystem(&hostfs_type); + kmem_cache_destroy(hostfs_inode_cache); } module_init(init_hostfs) |