| Message ID | 20161215140715.12732-9-mhocko@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu 15-12-16 15:07:14, Michal Hocko wrote: > From: Michal Hocko <mhocko@suse.com> > > This reverts commit c45653c341f5c8a0ce19c8f0ad4678640849cb86 because > sb_getblk_gfp is not really needed as > sb_getblk > __getblk_gfp > __getblk_slow > grow_buffers > grow_dev_page > gfp_mask = mapping_gfp_constraint(inode->i_mapping, ~__GFP_FS) | gfp > > so __GFP_FS is cleared unconditionally and therefore the above commit > didn't have any real effect in fact. > > This patch should not introduce any functional change. The main point > of this change is to reduce explicit GFP_NOFS usage inside ext4 code to > make the review of the remaining usage easier. > > Signed-off-by: Michal Hocko <mhocko@suse.com> Looks good to me. You can add: Reviewed-by: Jan Kara <jack@suse.cz> Honza > --- > fs/ext4/extents.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c > index b1f8416923ab..ef815eb72389 100644 > --- a/fs/ext4/extents.c > +++ b/fs/ext4/extents.c > @@ -518,7 +518,7 @@ __read_extent_tree_block(const char *function, unsigned int line, > struct buffer_head *bh; > int err; > > - bh = sb_getblk_gfp(inode->i_sb, pblk, __GFP_MOVABLE | GFP_NOFS); > + bh = sb_getblk(inode->i_sb, pblk); > if (unlikely(!bh)) > return ERR_PTR(-ENOMEM); > > @@ -1096,7 +1096,7 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode, > err = -EFSCORRUPTED; > goto cleanup; > } > - bh = sb_getblk_gfp(inode->i_sb, newblock, __GFP_MOVABLE | GFP_NOFS); > + bh = sb_getblk(inode->i_sb, newblock); > if (unlikely(!bh)) { > err = -ENOMEM; > goto cleanup; > @@ -1290,7 +1290,7 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode, > if (newblock == 0) > return err; > > - bh = sb_getblk_gfp(inode->i_sb, newblock, __GFP_MOVABLE | GFP_NOFS); > + bh = sb_getblk(inode->i_sb, newblock); > if (unlikely(!bh)) > return -ENOMEM; > lock_buffer(bh); > -- > 2.10.2 >
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index b1f8416923ab..ef815eb72389 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -518,7 +518,7 @@ __read_extent_tree_block(const char *function, unsigned int line, struct buffer_head *bh; int err; - bh = sb_getblk_gfp(inode->i_sb, pblk, __GFP_MOVABLE | GFP_NOFS); + bh = sb_getblk(inode->i_sb, pblk); if (unlikely(!bh)) return ERR_PTR(-ENOMEM); @@ -1096,7 +1096,7 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode, err = -EFSCORRUPTED; goto cleanup; } - bh = sb_getblk_gfp(inode->i_sb, newblock, __GFP_MOVABLE | GFP_NOFS); + bh = sb_getblk(inode->i_sb, newblock); if (unlikely(!bh)) { err = -ENOMEM; goto cleanup; @@ -1290,7 +1290,7 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode, if (newblock == 0) return err; - bh = sb_getblk_gfp(inode->i_sb, newblock, __GFP_MOVABLE | GFP_NOFS); + bh = sb_getblk(inode->i_sb, newblock); if (unlikely(!bh)) return -ENOMEM; lock_buffer(bh);