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Commit fd95ef56 authored by David Sterba's avatar David Sterba
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btrfs: extent same: use GFP_KERNEL for page array allocations 



We can safely use GFP_KERNEL in the functions called from the ioctl
handlers. Here we can allocate up to 32k so less pressure to the
allocator could help.

Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 78f2c9e6

fs/btrfs/ioctl.c

+2 −2
Original line number Diff line number Diff line
@@ -2925,8 +2925,8 @@ static int btrfs_cmp_data_prepare(struct inode *src, u64 loff, 
	 * of the array is bounded by len, which is in turn bounded by

	 * BTRFS_MAX_DEDUPE_LEN.

	 */

	src_pgarr = kzalloc(num_pages * sizeof(struct page *), GFP_NOFS);

	dst_pgarr = kzalloc(num_pages * sizeof(struct page *), GFP_NOFS);

	src_pgarr = kzalloc(num_pages * sizeof(struct page *), GFP_KERNEL);

	dst_pgarr = kzalloc(num_pages * sizeof(struct page *), GFP_KERNEL);

	if (!src_pgarr || !dst_pgarr) {

		kfree(src_pgarr);

		kfree(dst_pgarr);