diff options
Diffstat (limited to 'fs/gfs2/inode.c')
| -rw-r--r-- | fs/gfs2/inode.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 8a7ed80d9f2d..36618e353199 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -89,6 +89,19 @@ static int iget_set(struct inode *inode, void *opaque) return 0; } +void gfs2_setup_inode(struct inode *inode) +{ + gfp_t gfp_mask; + + /* + * Ensure all page cache allocations are done from GFP_NOFS context to + * prevent direct reclaim recursion back into the filesystem and blowing + * stacks or deadlocking. + */ + gfp_mask = mapping_gfp_mask(inode->i_mapping); + mapping_set_gfp_mask(inode->i_mapping, gfp_mask & ~__GFP_FS); +} + /** * gfs2_inode_lookup - Lookup an inode * @sb: The super block @@ -127,11 +140,12 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type, ip = GFS2_I(inode); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { struct gfs2_sbd *sdp = GFS2_SB(inode); struct gfs2_glock *io_gl; int extra_flags = 0; + gfs2_setup_inode(inode); error = gfs2_glock_get(sdp, no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl); if (unlikely(error)) @@ -752,6 +766,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry, error = -ENOMEM; if (!inode) goto fail_gunlock; + gfs2_setup_inode(inode); ip = GFS2_I(inode); error = posix_acl_create(dir, &mode, &default_acl, &acl); @@ -924,7 +939,7 @@ fail_gunlock: gfs2_dir_no_add(&da); gfs2_glock_dq_uninit(&d_gh); if (!IS_ERR_OR_NULL(inode)) { - if (inode->i_state & I_NEW) + if (inode_state_read_once(inode) & I_NEW) iget_failed(inode); else iput(inode); |