- 04 Nov, 2014 2 commits
-
-
Gu Zheng authored
Use clear_inode_flag to replace the redundant cond_clear_inode_flag. Signed-off-by:
Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by:
-
Jaegeuk Kim authored
Previously, init_inode_metadata does not hold any parent directory's inode page. So, f2fs_init_acl can grab its parent inode page without any problem. But, when we use inline_dentry, that page is grabbed during f2fs_add_link, so that we can fall into deadlock condition like below. INFO: task mknod:11006 blocked for more than 120 seconds. Tainted: G OE 3.17.0-rc1+ #13 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. mknod D ffff88003fc94580 0 11006 11004 0x00000000 ffff880007717b10 0000000000000002 ffff88003c323220 ffff880007717fd8 0000000000014580 0000000000014580 ffff88003daecb30 ffff88003c323220 ffff88003fc94e80 ffff88003ffbb4e8 ffff880007717ba0 0000000000000002 Call Trace: [<ffffffff8173dc40>] ? bit_wait+0x50/0x50 [<ffffffff8173d4cd>] io_schedule+0x9d/0x130 [<ffffffff8173dc6c>] bit_wait_io+0x2c/0x50 [<ffffffff8173da3b>] __wait_on_bit_lock+0x4b/0xb0 [<ffffffff811640a7>] __lock_page+0x67/0x70 [<ffffffff810acf50>] ? autoremove_wake_function+0x40/0x40 [<ffffffff811652cc>] pagecache_get_page+0x14c/0x1e0 [<ffffffffa029afa9>] get_node_page+0x59/0x130 [f2fs] [<ffffffffa02a63ad>] read_all_xattrs+0x24d/0x430 [f2fs] [<ffffffffa02a6ca2>] f2fs_getxattr+0x52/0xe0 [f2fs] [<ffffffffa02a7481>] f2fs_get_acl+0x41/0x2d0 [f2fs] [<ffffffff8122d847>] get_acl+0x47/0x70 [<ffffffff8122db5a>] posix_acl_create+0x5a/0x150 [<ffffffffa02a7759>] f2fs_init_acl+0x29/0xcb [f2fs] [<ffffffffa0286a8d>] init_inode_metadata+0x5d/0x340 [f2fs] [<ffffffffa029253a>] f2fs_add_inline_entry+0x12a/0x2e0 [f2fs] [<ffffffffa0286ea5>] __f2fs_add_link+0x45/0x4a0 [f2fs] [<ffffffffa028b5b6>] ? f2fs_new_inode+0x146/0x220 [f2fs] [<ffffffffa028b816>] f2fs_mknod+0x86/0xf0 [f2fs] [<ffffffff811e3ec1>] vfs_mknod+0xe1/0x160 [<ffffffff811e4b26>] SyS_mknod+0x1f6/0x200 [<ffffffff81741d7f>] tracesys+0xe1/0xe6 Signed-off-by:
-
- 09 Jul, 2014 1 commit
-
-
Gu Zheng authored
kernel side(xx_init_acl), the acl is get/cloned from the parent dir's, which is credible. So remove the redundant validation check of acl here. Signed-off-by:
-
- 07 May, 2014 1 commit
-
-
Jaegeuk Kim authored
This patch passes the "flags" field to the low level setxattr functions to use XATTR_REPLACE in the following patches. Signed-off-by:
-
- 07 Apr, 2014 1 commit
-
-
ZhangZhen authored
Before setting the acl, call posix_acl_valid() to check if it is valid or not. Signed-off-by:
-
- 20 Mar, 2014 1 commit
-
-
Jaegeuk Kim authored
This patch should resolve the following possible bug. RECLAIM_FS-ON-W at: mark_held_locks+0xb9/0x140 lockdep_trace_alloc+0x85/0xf0 __kmalloc+0x53/0x1d0 read_all_xattrs+0x3d1/0x3f0 [f2fs] f2fs_getxattr+0x4f/0x100 [f2fs] f2fs_get_acl+0x4c/0x290 [f2fs] get_acl+0x4f/0x80 posix_acl_create+0x72/0x180 f2fs_init_acl+0x29/0xcc [f2fs] __f2fs_add_link+0x259/0x710 [f2fs] f2fs_create+0xad/0x1c0 [f2fs] vfs_create+0xed/0x150 do_last+0xd36/0xed0 path_openat+0xc5/0x680 do_filp_open+0x43/0xa0 do_sys_open+0x13c/0x230 SyS_creat+0x1e/0x20 system_call_fastpath+0x16/0x1b Signed-off-by:
-
- 26 Jan, 2014 3 commits
-
-
Christoph Hellwig authored
f2fs has some weird mode bit handling, so still using the old chmod code for now. Signed-off-by:
-
Christoph Hellwig authored
Rename the current posix_acl_created to __posix_acl_create and add a fully featured helper to set up the ACLs on file creation that uses get_acl(). Signed-off-by:
-
Christoph Hellwig authored
Rename the current posix_acl_chmod to __posix_acl_chmod and add a fully featured ACL chmod helper that uses the ->set_acl inode operation. Signed-off-by:
-
- 28 Oct, 2013 2 commits
-
-
Jaegeuk Kim authored
The deadlock is found through the following scenario. sys_mkdir() -> f2fs_add_link() -> __f2fs_add_link() -> init_inode_metadata() : lock_page(inode); -> f2fs_init_acl() -> f2fs_set_acl() -> f2fs_setxattr(..., NULL) : This NULL page incurs a deadlock at update_inode_page(). So, likewise f2fs_init_security(), this patch adds a parameter to transfer the locked inode page to f2fs_setxattr(). Found by Linux File System Verification project (linuxtesting.org). Reported-by: -
Jaegeuk Kim authored
This patch cleans up a couple of acl codes. Signed-off-by:
-
- 11 Jun, 2013 1 commit
-
-
Jaegeuk Kim authored
This patch adds the support of security labels for f2fs, which will be used by Linus Security Models (LSMs). Quote from http://en.wikipedia.org/wiki/Linux_Security_Modules : "Linux Security Modules (LSM) is a framework that allows the Linux kernel to support a variety of computer security models while avoiding favoritism toward any single security implementation. The framework is licensed under the terms of the GNU General Public License and is standard part of the Linux kernel since Linux 2.6. AppArmor, SELinux, Smack and TOMOYO Linux are the currently accepted modules in the official kernel.". Signed-off-by:
-
- 09 Apr, 2013 1 commit
-
-
Al Viro authored
Signed-off-by:
-
- 04 Jan, 2013 1 commit
-
-
Jaegeuk Kim authored
This patch resolves Coverity #751303: >>> CID 753103: Explicit null dereferenced (FORWARD_NULL) Passing null >>> pointer "value" to function "f2fs_acl_from_disk(char const *, size_t)", which dereferences it. [Error path] - value = NULL; - retval = 0 by f2fs_getxattr(); - f2fs_acl_from_disk(value:NULL, ...); Signed-off-by:
-
- 26 Dec, 2012 1 commit
-
-
Eric W. Biederman authored
With user namespaces enabled building f2fs fails with: CC fs/f2fs/acl.o fs/f2fs/acl.c: In function ‘f2fs_acl_from_disk’: fs/f2fs/acl.c:85:21: error: ‘struct posix_acl_entry’ has no member named ‘e_id’ make[2]: *** [fs/f2fs/acl.o] Error 1 make[2]: Target `__build' not remade because of errors. e_id is a backwards compatibility field only used for file systems that haven't been converted to use kuids and kgids. When the posix acl tag field is neither ACL_USER nor ACL_GROUP assigning e_id is unnecessary. Remove the assignment so f2fs will build with user namespaces enabled. Cc: Namjae Jeon <namjae.jeon@samsung.com> Cc: Amit Sahrawat <a.sahrawat@samsung.com> Acked-by:
-
- 11 Dec, 2012 3 commits
-
-
Jaegeuk Kim authored
There exist two build failures reported by Randy Dunlap as follows. (on i386) a. (config-r8857) ERROR: "f2fs_xattr_advise_handler" [fs/f2fs/f2fs.ko] undefined! Key configs in (config-r8857) are as follows. CONFIG_F2FS_FS=m # CONFIG_F2FS_STAT_FS is not set CONFIG_F2FS_FS_XATTR=y # CONFIG_F2FS_FS_POSIX_ACL is not set The error was occurred due to the function location that we made a mistake. Recently we added a new functionality for users to indicate cold files explicitly through xattr operations (i.e., f2fs_xattr_advise_handler). This handler should have been added in xattr.c instead of acl.c in order to avoid an undefined operation like in this case where XATTR is set and ACL is not set. b. (config-r8855) fs/f2fs/file.c: In function 'f2fs_vm_page_mkwrite': fs/f2fs/file.c:97:2: error: implicit declaration of function 'block_page_mkwrite_return' Key config in (config-r8855) is CONFIG_BLOCK. Obviously, f2fs works on top of the block device so that we should consider carefully a sort of config dependencies. The reason why this error was occurred was that f2fs_vm_page_mkwrite() calls block_page_mkwrite_return() which is enalbed only if CONFIG_BLOCK is set. Reported-by:
-
Jaegeuk Kim authored
As pointed out by Randy Dunlap, this patch removes all usage of "/**" for comment blocks. Instead, just use "/*". Signed-off-by: -
Jaegeuk Kim authored
This implements xattr and acl functionalities. - F2FS uses a node page to contain use extended attributes. Signed-off-by:
-