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jbd2: replace __get_free_pages() with kmalloc()

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jbd2_alloc() falls back from kmem_cache_alloc() to __get_free_pages() for
allocations larger than PAGE_SIZE.
But kmalloc() can handle such cases with essentially the same fallback.

Replace use of __get_free_pages() with kmalloc() and simplify
jbd2_free() as both kmem_cache_alloc() and kmalloc() allocations can be
freed with kfree().

Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Link: https://patch.msgid.link/20260523-b4-fs-v1-10-275e36a83f0e@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Mike Rapoport (Microsoft)
2026-05-23 20:54:22 +03:00
committed by Christian Brauner
parent de9f4f0b2c
commit 2f6702dc6f
1 changed files with 2 additions and 5 deletions
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7
fs/jbd2/journal.c
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@@ -2784,7 +2784,7 @@ void *jbd2_alloc(size_t size, gfp_t flags)
if (size < PAGE_SIZE)
ptr = kmem_cache_alloc(get_slab(size), flags);
else
ptr = (void *)__get_free_pages(flags, get_order(size));
ptr = kmalloc(size, flags);
/* Check alignment; SLUB has gotten this wrong in the past,
* and this can lead to user data corruption! */
@@ -2795,10 +2795,7 @@ void *jbd2_alloc(size_t size, gfp_t flags)
void jbd2_free(void *ptr, size_t size)
{
if (size < PAGE_SIZE)
kmem_cache_free(get_slab(size), ptr);
else
free_pages((unsigned long)ptr, get_order(size));
kfree(ptr);
};
/*