Now that all of the callers of set_extent_bit use GFP_NOFS and
 all callers of set_extent_bit_atomic use GFP_ATOMIC, we can
 drop the gfp_t argument to both.

Signed-off-by: Jeff Mahoney <je...@suse.com>
---
 fs/btrfs/extent_io.c |   35 +++++++++++++++--------------------
 fs/btrfs/extent_io.h |    9 +++------
 fs/btrfs/inode.c     |    2 +-
 3 files changed, 19 insertions(+), 27 deletions(-)

--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -960,30 +960,28 @@ search_again:
 
 int set_extent_bit_atomic(struct extent_io_tree *tree, u64 start, u64 end,
                          int bits, u64 *failed_start,
-                         struct extent_state **cached_state, gfp_t mask)
+                         struct extent_state **cached_state)
 {
-       WARN_ON(mask & __GFP_WAIT);
        return __set_extent_bit(tree, start, end, bits, 0, failed_start,
-                               cached_state, mask);
+                               cached_state, GFP_ATOMIC);
 }
 
 void set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, int bits,
-                   u64 *failed_start, struct extent_state **cached_state,
-                   gfp_t mask)
+                   u64 *failed_start, struct extent_state **cached_state)
 {
        int ret;
-       WARN_ON(!(mask & __GFP_WAIT));
+       might_sleep();
        ret = __set_extent_bit(tree, start, end, bits, 0,
-                              failed_start, cached_state, mask);
+                              failed_start, cached_state, GFP_NOFS);
        BUG_ON(ret < 0);
 }
 
 int set_extent_bit_excl(struct extent_io_tree *tree, u64 start, u64 end,
                        int bits, int exclusive_bits, u64 *failed_start,
-                       struct extent_state **cached_state, gfp_t mask)
+                       struct extent_state **cached_state)
 {
        return __set_extent_bit(tree, start, end, bits, exclusive_bits,
-                               failed_start, cached_state, mask);
+                               failed_start, cached_state, GFP_NOFS);
 }
 
 /**
@@ -1174,12 +1172,12 @@ search_again:
 /* wrappers around set/clear extent bit */
 void set_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end)
 {
-       set_extent_bit(tree, start, end, EXTENT_DIRTY, NULL, NULL, GFP_NOFS);
+       set_extent_bit(tree, start, end, EXTENT_DIRTY, NULL, NULL);
 }
 
 void set_extent_bits(struct extent_io_tree *tree, u64 start, u64 end, int bits)
 {
-       set_extent_bit(tree, start, end, bits, NULL, NULL, GFP_NOFS);
+       set_extent_bit(tree, start, end, bits, NULL, NULL);
 }
 
 void clear_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
@@ -1199,7 +1197,7 @@ void set_extent_delalloc(struct extent_i
                         struct extent_state **cached_state)
 {
        set_extent_bit(tree, start, end, EXTENT_DELALLOC | EXTENT_UPTODATE,
-                      NULL, cached_state, GFP_NOFS);
+                      NULL, cached_state);
 }
 
 void clear_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end)
@@ -1210,21 +1208,20 @@ void clear_extent_dirty(struct extent_io
 
 void set_extent_new(struct extent_io_tree *tree, u64 start, u64 end)
 {
-       set_extent_bit(tree, start, end, EXTENT_NEW, NULL, NULL, GFP_NOFS);
+       set_extent_bit(tree, start, end, EXTENT_NEW, NULL, NULL);
 }
 
 int set_extent_uptodate_atomic(struct extent_io_tree *tree, u64 start, u64 end,
                               struct extent_state **cached_state)
 {
        return set_extent_bit_atomic(tree, start, end, EXTENT_UPTODATE, NULL,
-                                    cached_state, GFP_ATOMIC);
+                                    cached_state);
 }
 
 void set_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
                         struct extent_state **cached_state)
 {
-       set_extent_bit(tree, start, end, EXTENT_UPTODATE, NULL, cached_state,
-                      GFP_NOFS);
+       set_extent_bit(tree, start, end, EXTENT_UPTODATE, NULL, cached_state);
 }
 
 static void clear_extent_uptodate(struct extent_io_tree *tree, u64 start,
@@ -1246,8 +1243,7 @@ int lock_extent_bits(struct extent_io_tr
        while (1) {
                err = set_extent_bit_excl(tree, start, end,
                                          EXTENT_LOCKED | bits, EXTENT_LOCKED,
-                                         &failed_start, cached_state,
-                                         GFP_NOFS);
+                                         &failed_start, cached_state);
                if (err == -EEXIST) {
                        wait_extent_bit(tree, failed_start, end, EXTENT_LOCKED);
                        start = failed_start;
@@ -1270,8 +1266,7 @@ int try_lock_extent(struct extent_io_tre
        u64 failed_start;
 
        err = set_extent_bit_excl(tree, start, end, EXTENT_LOCKED,
-                                 EXTENT_LOCKED, &failed_start, NULL,
-                                 GFP_NOFS);
+                                 EXTENT_LOCKED, &failed_start, NULL);
        if (err == -EEXIST) {
                if (failed_start > start)
                        clear_extent_bit(tree, start, failed_start - 1,
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -220,15 +220,12 @@ void set_extent_bits(struct extent_io_tr
 int __must_check set_extent_bit_excl(struct extent_io_tree *tree, u64 start,
                                     u64 end, int bits, int exclusive_bits,
                                     u64 *failed_start,
-                                    struct extent_state **cached_state,
-                                    gfp_t mask);
+                                    struct extent_state **cached_state);
 int __must_check set_extent_bit_atomic(struct extent_io_tree *tree, u64 start,
                                       u64 end, int bits, u64 *failed_start,
-                                      struct extent_state **cached_state,
-                                      gfp_t mask);
+                                      struct extent_state **cached_state);
 void set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, int bits,
-                   u64 *failed_start, struct extent_state **cached_state,
-                   gfp_t mask);
+                   u64 *failed_start, struct extent_state **cached_state);
 int __must_check set_extent_uptodate_atomic(struct extent_io_tree *tree,
                                            u64 start, u64 end,
                                            struct extent_state **cached_state);
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6083,7 +6083,7 @@ static ssize_t btrfs_direct_IO(int rw, s
        if (writing) {
                write_bits = EXTENT_DELALLOC | EXTENT_DO_ACCOUNTING;
                set_extent_bit(&BTRFS_I(inode)->io_tree, lockstart, lockend,
-                              EXTENT_DELALLOC, NULL, &cached_state, GFP_NOFS);
+                              EXTENT_DELALLOC, NULL, &cached_state);
        }
 
        free_extent_state(cached_state);


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