[PATCH] ext4: drop ext4_kvmalloc()
From: "Theodore Ts'o" <tytso@mit.edu>
Date: 2020-01-16 15:50:54
Subsystem:
ext4 file system, filesystems (vfs and infrastructure), the rest · Maintainers:
"Theodore Ts'o", Alexander Viro, Christian Brauner, Linus Torvalds
As Jan pointed out[1], as of commit 81378da64de ("jbd2: mark the
transaction context with the scope GFP_NOFS context") we use
memalloc_nofs_{save,restore}() while a jbd2 handle is active. So
ext4_kvmalloc() so we can call allocate using GFP_NOFS is no longer
necessary.
[1] https://lore.kernel.org/r/20200109100007.GC27035@quack2.suse.cz (local)
---
fs/ext4/ext4.h | 1 -
fs/ext4/resize.c | 10 ++++------
fs/ext4/super.c | 10 ----------
fs/ext4/xattr.c | 2 +-
4 files changed, 5 insertions(+), 18 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 5e621b0da4da..9a2ee2428ecc 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h@@ -2740,7 +2740,6 @@ extern struct buffer_head *ext4_sb_bread(struct super_block *sb, extern int ext4_seq_options_show(struct seq_file *seq, void *offset); extern int ext4_calculate_overhead(struct super_block *sb); extern void ext4_superblock_csum_set(struct super_block *sb); -extern void *ext4_kvmalloc(size_t size, gfp_t flags); extern int ext4_alloc_flex_bg_array(struct super_block *sb, ext4_group_t ngroup); extern const char *ext4_decode_error(struct super_block *sb, int errno,
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index a8c0f2b5b6e1..86a2500ed292 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c@@ -824,9 +824,8 @@ static int add_new_gdb(handle_t *handle, struct inode *inode, if (unlikely(err)) goto errout; - n_group_desc = ext4_kvmalloc((gdb_num + 1) * - sizeof(struct buffer_head *), - GFP_NOFS); + n_group_desc = kvmalloc((gdb_num + 1) * sizeof(struct buffer_head *), + GFP_KERNEL); if (!n_group_desc) { err = -ENOMEM; ext4_warning(sb, "not enough memory for %lu groups",
@@ -900,9 +899,8 @@ static int add_new_gdb_meta_bg(struct super_block *sb, gdb_bh = ext4_sb_bread(sb, gdblock, 0); if (IS_ERR(gdb_bh)) return PTR_ERR(gdb_bh); - n_group_desc = ext4_kvmalloc((gdb_num + 1) * - sizeof(struct buffer_head *), - GFP_NOFS); + n_group_desc = kvmalloc((gdb_num + 1) * sizeof(struct buffer_head *), + GFP_KERNEL); if (!n_group_desc) { brelse(gdb_bh); err = -ENOMEM;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 84a86d9b790f..ecf36a23e0c4 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c@@ -204,16 +204,6 @@ void ext4_superblock_csum_set(struct super_block *sb) es->s_checksum = ext4_superblock_csum(sb, es); } -void *ext4_kvmalloc(size_t size, gfp_t flags) -{ - void *ret; - - ret = kmalloc(size, flags | __GFP_NOWARN); - if (!ret) - ret = __vmalloc(size, flags, PAGE_KERNEL); - return ret; -} - ext4_fsblk_t ext4_block_bitmap(struct super_block *sb, struct ext4_group_desc *bg) {
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 246fbeeb6366..8cac7d95c3ad 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c@@ -1456,7 +1456,7 @@ ext4_xattr_inode_cache_find(struct inode *inode, const void *value, if (!ce) return NULL; - ea_data = ext4_kvmalloc(value_len, GFP_NOFS); + ea_data = kvmalloc(value_len, GFP_KERNEL); if (!ea_data) { mb_cache_entry_put(ea_inode_cache, ce); return NULL;
--
2.24.1